Genetics Practice Midterm 2022 - Couch
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Genetics Practice Midterm 2022 %4
Answer all questions in the space provided. 2) Writing can be in pencil or ink, but pencil, erasable ink or answers with white-out cannot be remarked. 3) Answers may be in sentences or point form. Illustrations are acceptable but must be annotated. 4) Students suspected of any dishonest practices will be immediately dismissed from the examination and will be subject to disciplinary action. 5) Other than a one-page (double-sided) study sheet, no other memory devices are permitted. Study sheets that exceed the size limit may be confiscated and may be considered as cheating. 6) Make sure you have 6 pages (3 pieces of paper) including this cover page.
Question
1 The picture below shows the chromosomes in a cell from an F1 plant at G1 and one of the products of meiosis. For this activity, if crossing-over occurs, assume that only one crossing-
over event occurs per chromosome per meiosis (i.e. only one pair of chromatids will be recombinant). Cell from an F1 individual at G1.
One of the four gametes produced 1a) What is the ploidy of the F1 individual? _______________________ 1b) What is the haploid number of the F1 individual? ____________________ 1c) Considering only the genes and alleles diagrammed in the figure above, how many different haploid genotypes can be produced by the F1 individual? number of possible haploid genotypes = ___________________________ 1d) If the parents of the F1 individual were pure breeding, what are all the possible genotypes of the parents that generated this F1 individual? 1e) In the table below (on the next page), draw cells at each of the stages given in column 1. Your drawings must reflect the specific arrangement(s) of chromosomes that will give rise to the gamete shown above. You will need to draw the other haploid products resulting from this meiosis. •
Show the spindle or use arrows to indicate the direction of chromosome movement (if relevant), and clearly label the genes and alleles on all of the chromosomes or chromatids. •
You may use either bars or straight lines to represent chromatids. Chromosomes should be diagrammed as condensed at all stages for clarity.
Stage of the Cell Cycle Diagram of chromosomes at the given stage Cell at Anaphase of Meiosis I The 4 resulting gametes. One gamete is shown.
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Related Questions
Pedigree Analysis
Examine the following pedigrees.
1 Examine the pedigree of achondroplasia (a form of dwarfism).
a Is this trait dominant or recessive?
b How do
you
know?
c Label all of the genotypes on the pedigree chart.
II
Laboratory Exercise 9
Trait Genetics 113
%3D
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Search the menus (Alt+/)
75%
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Calibri
в IUA
11
+
...
1.| 2 | 3 |
• 4.| 5
6
8
12. Although Laurlanthalasa, Princess of the Qualinesti elves, is known for riding into battle on a silver dragon, this
is not her main form of transportation. She generally travels by way of griffon. Although the allele for a "crown" of
feathers around the head is dominant, it is rarely found in the wild. This may be due to the fact that it makes the
griffons stand out, thus making them less effective hunters and more visible to their natural enemies, evil chromatic
dragons. This scarcity also makes them prized by elven royalty. Lauralanthalasa was given a breeding pair of bald
griffons by an admirer who claims that they are both hybrids for the crowned gene. Create a Punnett Square to
determine if Lauralanthalasa will have any chance using these two griffins to produce crowned offspring.
Alleles (letters) and
Phenotypes
All Genotype and Phenotype
Parent
Punnett Square
Possibilities
Genotypes…
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Switch Background
P Immersive Reader
100%
Page Width
d. What percent of the offspring will be carriers of the white eye trait?
2. Using the same information as for question #1, cross a heterozygous red-eyed female with a red-eyed
male.
a. What are the genotypes of each parent?
ic
b. What fraction of the children will have red eyes?
c. What fraction of the children will have white eyes?
Pra
d. What fraction of the female children will carry the white eyed trait?
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Bb Take Test: Mod 9 Lab - Genetic X +
←
]
C
G
QUESTION 3
In the pedigree below, all shaded individuals express the gene in question. For example, Arlene "has" the trait, she displays the phenotype in question. For example, if we were
following the inheritance pattern of a widow's peak, Arlene has a widow's peak (that is NOT the trait here, just an example). Unshaded individuals (blank circles and squares) do
not manifest the trait in question, but their specific genotype is unknown - they could be heterozygous, homozygous dominant, or homozygous recessive.
What is the mechanism of inheritance of this trait?
Sandra
Daniel
recessive
dominant
Tom
990
Alan
QUESTION 4
George
Sam
Tina
Christopher
Arlene
Wilma
Ann
O
Carla
R Update
Michael
In the pedigree below, all shaded individuals express the gene in question. For example, Arlene "has" the trait, she displays the phenotype in question. For example, if we were
following the inheritance pattern of a widow's peak, Arlen a widow's peak (that…
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-ral Biology
mmer Session 1 2021/BIO 100/D1/ Assessments/ BIO 100 Test- Genetics
Sickle cell anemia is an inherited red blood cell disorder in which there are not enough healthy
red blood cells to carry oxygen throughout the body. The allele that causes sickle-cell anemia
is autosomal recessive (s), and the dominant allele can be represented by S.
How many offspring will be affected by the disorder if the mother is a carrier, and the
a.
father
appears
to be normal? (Include the gender)
b.
How many will become carriers? (include the gender)
A BI
四
四
II
I!!
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Could you please help me with figuring out the answers to these Genetics practice questions? My professor does not provide the answers and I have done however do not know if I am right. I have two more pictures of problems from where the submitted ones end of.
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13:10
l 5G
Done
Photo
Use the following information to answer question 3.
In sheep, white wool is a dominant trait and black wool is a recessive trait. In a herd
of 500 sheep, 20 sheep have black wool.
Numerical Response:
Bb
20
3. In this herd, what is the frequency of the heterozygous genotype?
Answer:
Record your answer as a value from 0 to 1, rounded to two decimal places.
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Non- Mendelian patterm of inheritance.
Activity 4: What's your blood type?
Objective:
Infer the unknown phenotypes of individuals on the basis of the known phenotypes of their family members
Procedure:
A. Given the blood types of the mother and the child, identify the possible blood type of the father.
Mother's Blood type
Father's Blood type
Child's Blood type
A
B
AB
AB
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CYSTIC FIBROSIS
LAB EXERCISE INSTRUCTIONS:
a hereditary disease that affects the lungs and digestive system
DNA SEQUENCE IN FUNCTIONAL (UNAFFECTED) CFTR ALLELE
BACKGROUND INFORMATION:
DNA Gene Base ancestral Sequence: .... TAG/TAG/AAA/CCA/CAA....
Associated gene: CFTR at locus 7q31.2
• 188,702 bases long
• Codes for the CFTR protein, which has 1,480 amino acids
• CFTR protein controls chloride ion (salt) & water balance in epithelial cells - surface barrier cells,
covering both external and internal surfaces (examples: in the lungs and digestive tract)
1. Transcribe into five MRNA Codons:
2. Translate into five TRNA Anticodons:
3. Identify the five associated Amino Acids:
Mutation and Associated Genetic Condition
1,700+ identified mutations that cause protein disfunction
• AFS08 CFTR mutation (A = deletion)
o accounts for c. 70% of cystic fibrosis cases
o estimated origin 52,000 years ago
o produces a misfolded, non-functional protein that is discarded
o Inheritance: Autosomal…
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Karyotype Lab
State Standards:
The role of cellular division (mitosis) and differentiation in producing and maintaining complex organisms
(LS1-4)
Ask questions to clarify relationships about the role of DNA and chromosomes in coding the instructions
for characteristic traits passed from parents to offspring. (LS3-1)
Objective:
1. Identify the types of chromosomes in a human karyotype.
2. Interpret data in a human karyotype and diagnose an individual, based on the data
and research of chromosomal disorders.
Introduction:
This exercise is a simulation of human karyotyping using images of chromosomes
created by your teacher from actual human genetic studies. Cell biologists analyze chromosomes
by looking at karyotypes. A karyotype is a picture of chromosomes arranged in homologous
pairs. A karyotype shows all 44 autosomes, (#'s 1-22 in the karyotype) and the 2 sex
chromosomes, (XX or XY). All 46 human chromosomes.
You will be examining two different karyotypes, and interpreting your…
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(19) WhatsApp
0 (542) H.E.R. - Changes X
Why is it not possible X
al%20School/OneDrive/Documents/Grade%2012%20variation%20and%20evolution%20
(D Page view
A Read aloud V Draw
Hig
ii).
iii).
13)
4. Sickle cell anemia is a favorable mutation. There is only one amino acid dillerent in
Sickle hemoglobin (S) as compared with normal adult hemoglobin (A). Persons with
sickle cell trait (AS) are able to survive in malarious areas.
i) A couple each having sickle cell trait have five children. What is the probability thas
they will have a child with sickle cell disease?
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Please show your work, draw If needed
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My professor instructed me to make a PowerPoint presentation on this topic " Prenatal Molecular Testing ". I have total 4 members in my group. Can you please divide the topic into 4 sub topic or parts? So that we can individually take preparation. I will rate you positive if you do so. Thank you so much. ?
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. Discuss how Genome-wide association studies (GWAS) can be used to identify genetic risk loci for (a) diseases with complex inheritance and (b) pharmacogenomic genotype-phenotype associations. Draw on specific examples and experimental evidence in your discussion.
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My professor instructed me to make a power point presentation on this topic" Prenatal Molecular Testing ". I have total 4 members in my group, Now can you divide this topic into 4 sub topic or parts, which we can work? Please divide the topic into 4 parts, i will rate you positive if you do so. Thank you. ?
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Punnet square problems
A=Codominant; B=Codominant; O=Recessive
Mary is homozygous for type A blood. Steve is homozygous for type O blood. If they have children, what are the possible phenotypes and genotypes of their children, and what is the probability of each?
Mary and Steve have a son, Brad. Brad’s wife, Samantha is heterozygous for type B blood. If they have children, what are the possible phenotypes and genotypes of their children, and what is the probability of each?
Stella loves roses and decides to cross her red rose with her white rose. All of the resulting offspring of this cross are pink roses. What can you say about the red and white alleles as a result of this cross?
Stella decides to cross two of the pink roses. What are the possible genotypes and phenotypes of the offspring and the probabilities of each?
DNA replication, Transcription and Translation problems
It is S phase of the cell cycle, and time to replicate the cell’s DNA. Using the following strand of DNA…
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Mnance)
Objective:
1. The student will be able to create and complete a Punnett square representing codominance as it
relates to their family blood types.
2. The student will be able to analyze data and determine what the possible blood types are for a given
set of parents.
3. The student will be able to explain how knowledge of blood types is related to their personal health.
Background: Codominance occurs when both alleles in the heterozygote express themselves fully.
Because both of the alleles are fully expressed, both alleles are equally emphasized in the genotypic
notation. For example, a codominant trait in humans is blood type. The letters A and B that identify blood
types refer to the two different carbohydrates that coat the surface of red blood cells. If you have type A
blood, you have type A carbohydrate on your red blood cells. Type B blood had type B carbohydrate, Type
AB has both carbohydrates, and Type O has no carbohydrates. These alleles are represented by an I, and a…
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Need help!
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1. DO NOT ROUND OFF YOUR ANSWERS PREMATURELY. Use the unrounded and complete values when
computing for the genetic gain;
2. Upon encoding, all final answers should be rounded-off to TWO decimal places. Examples: 3.5798 =
3.58, 0.0079 = 0.01, 0.00000008 = 0.00;
2. Report your answers as NUMERIC VALUES only. Please exclude the units;
3. Write ONLY one answer for each question. Avoid using "or", "/", "&" and "and". Provide only what is asked
to you;
4. AVOID using unnecessary PUNCTUATIONS (. , ? 1; ; etc.), SYMBOLS ( []{ } etc.) and SPACES (before
or after your answer).
Please follow these instructions carefully.
Prediction of Genetic Gain. If the milk yield of a herd of cow is 6,479 kg
while those kept for breeding is 6,890 kg, and the h2 estimate of milk yield
is 0.85. And the generation interval of dairy cattle is 4 years. What will be
the expected genetic gain in the milk yield (kg/year) of the next
generation?
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A and d please. Thanks
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?action=Donresume&submissionld%3D459115049
Trait
Dominant Allele
Recessive Allele
Body Color
Brown (B)
Albino (b)
Back Stripe
No Stripe(N)
Stripe (n)
Fill in the blanks (1-4) in the Punnett square below and answer the questions.
Bn
Bn
Bn
Bn
bN
BbNn
BbNn
BbNn
bn
Bbnn
Bbnn
Bbnn
bN
BbNn
BbNn
BbNn
bn
Bbnn
Bbnn
Bbnn
For the next two questions below, fill in the allele(s) that you are looking for to determine the
number of each type of traits specified. (HINT: Remember how many alleles do you need to
have the dominant trait vs the recessive trait)
How many gecko offspring will be brown and have a stripe?
How many gecko offspring will be albino and have no stripe?
What is the phenotype of the genotype BbNn?
: B
:: b
:: N
: BB
:: Bb
:: bb
:: NN
: Nn
:: nn
:: Brown and no stripe
: Brown and a stripe
: Albino and no stripe
: Albino and a stripe
: 0
:: 4
:: 6
:: 9
:: 8
: 12
:: 16
: BBNN
:: BBNN
: BBnn
:: BBNN
: BBN.
: Bbnn
: bbNN
: bbNn
:: bbnn
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PRACTICE EXERCISES 2:
1.
For instance, in cows, red (R) and white (W) are
two possible hair colors. However, when a red cow and a
white cow mate, instead of one color being dominant over
the other, BOTH are expressed, in a color called roan
(red-and-white). Fill out the genotypes below:
Homozygous red:
Homozygous white:
Roan:
Show the Punnett Square for a cross between two roan cows:
Probability of roan offspring:
Probability of red offspring:
Probability of white offspring:
%
2 If R is the allele for red and W is the allele for white in a flower, and
this is codominance, show what happens if a red flower is crossed
with a white flower.
Red genotype:
White genotype:
Phenotype (offspring):
Genotype (offspring):
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Colored beans to represent the gene for a certain trait of garden pea. (60 pieces of the same size and shape; 30 pieces of which are of different colors from rest)
Procedures:
1. Place the 30 pieces beans (one color) to one container and the other 30 pieces to the other container. Assign which color of beans will represent dominant and recessive genes of a specific trait of garden pea
2. Label the paper container as First Parent P1, male and other P1 female
3. At random, segregate the beans on the Lab table. Assume fertilization occurs and First filial generations (F1) are formed
4. Categorize the formed First filial generations
5. Put all the beans in one container. Assume that all the first filial generations undergo self-fertilization
6. Pick up the beans by two from the container without looking at it and collect the second Filial generation (F2)
7. Categorize the formed Second filial generations into two (2) phenotype, and three (3) genotype classes
8. Fill up Table 15.1 for the…
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Twin study/
benefit of twin study/*****
Delimmas of twin study/**
**
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I do not understand please help
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*00
2.
Genetics Discovery Education
sslink.discoveryeducation.com/learn/techbook/units/f3e092bd-6fdd-49c3-be37-aa2cdbdaca6a/concepts/73dc8306-4604-4a7d-b43... Q ☆
Desmos | Graphing..
Outlook
G Chromebook keybo..
AClasses
Bb RHETORICAL PRÉCIS
StudentVUE
Gregor Mendel followed specific steps when breeding pea plants to determine the underlying cause and
mathematical ratio of specific traits. Drag and drop the four tiles that describe the order of his process and
findings.
Mendel crossed two Identical, true-breeding plants for
a particular characteristic.
1.
Mendel crossed two contrasting true-breeding plants
with two different traits for a given characteristic.
Mendel labeled the offspring of the first plants bred F1,
for first flower.generation.
...
Mendel labeled the offspring of the first plants bred F1,
for first filial generation.
3.
:::
Mendel cross-bred F1 plants with F2 plants.
4.
:::
Mendel cross-bred F1 plants with each other.
The F2 population produced flowers in a 3:1 ratio…
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Search the menus (Alt+/)
90%
Normal text
Calibri
BI UA
11
+
...
I 1
2 I 3 I:
4 | 5
6 7
8
11. Farmer Jorge is not very happy. His cows keep attacking him with their horns. He heard from his friend, Ta Lay
that some cows do not have horns. These cows are known as polled cows. Farmer Jorge can only afford to buy one
polled cow. He buys a purebred male (called a bull), with no horns. He is going to have the bull mate with his cow
that is homozygous recessive for horns. Can his cows make a baby (called a calf) with no horns? Create a Punnett
Square to show the possibilities that could result from this mating.
Alleles and Phenotype
All Genotype and
Phenotype Possibilities
Parent Genotypes
Punnett Square
Allele
Phenotype
Genotype
Phenotype
Dad
Mom
4 of 7
a. Bull's Genotype
b. Cow's Genotype
c. What is the probability of having a polled calf?
d. What is the probability of having a horned calf?
e. What is the probability for a homozygous recessive?
f. Can Jorge's cows make a calf with no horns?
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What is the gene that goes with a trait called
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If it takes 8 minutes for light from the sun to reach earth ,it will take approximately 240.4 minutes for light to reach the planet:
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Procedure:
1. Stick a piece of masking tape on the four 25 g coins. Make sure that the size of the tape is within the
circumference of the coin. For this purpose, two of Mendel's seven characters of the pea plant will
be used: height and seed color.
2. Mark one side of two coins I (tall allele) and the other side t (short allele). Similarly, mark one side of
the other two coins Y (yellow allele) and the other side y (green allele).
3. Monohybrid Cross. In this part, the height character will be investigated.
a. Get the two coins for height: one coin corresponds to the male and the other coin to the
female. T and t are gametes for tallness and shortness, respectively.
b. Place the two coins in cupped hands, shake them, and toss the coins on your desk.
c. Read and record the coin combinations in your data sheet. Repeat the toss 50 times.
4. Dihybrid Cross. This time, two traits will be considered: height and seed color.
a. Get all four coins, place them in cupped hands, and shake and…
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Procedure:
1. Stick a piece of masking tape on the four 25 g coins. Make sure that the size of the tape is within the
circumference of the coin. For this purpose, two of Mendel's seven characters of the pea plant wll
be used: height and seed color.
2. Mark one side of two coins T (tall allele) and the other side t (short allele). Similarly, mark one side of
the other two coins Y (yellow allele) and the other side y (green allele).
3. Monohybrid Cross. In this part, the height character will be investigated.
a. Get the two coins for height: one coin corresponds to the male and the other coin to the
female. T and t are gametes for tallness and shortness, respectively.
b. Place the two coins in cupped hands, shake them, and toss the coins on your desk.
c. Read and record the coin combinations in your data sheet. Repeat the toss 50 times.
4. Dihybrid Cross. This time, two traits willbe considered: height and seed color.
a. Get all four coins, place them in cupped hands, and shake and toss…
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DNA profiling is used to compare DNA in forensic investigations and paternity disputes.
The diagram below shows the DNA profiles of 3 men, a mother and a child.
Mother
Co
Child
|| | |||
|
|
'Dad' 1
| | ||
'Dad' 2
છે)
(9)
(00
'Dad' 3
|| ||
Source:
https://ib.bioninja.com.au/standard-level/topic-3-genetics/35-genetic-modification-and/dna-profiling.html
Identify the most likely biological father of the child and explain reasons for your choice.
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Please fill in UV-13 A and B
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- Bb Take Test: Mod 9 Lab - Genetic X + ← ] C G QUESTION 3 In the pedigree below, all shaded individuals express the gene in question. For example, Arlene "has" the trait, she displays the phenotype in question. For example, if we were following the inheritance pattern of a widow's peak, Arlene has a widow's peak (that is NOT the trait here, just an example). Unshaded individuals (blank circles and squares) do not manifest the trait in question, but their specific genotype is unknown - they could be heterozygous, homozygous dominant, or homozygous recessive. What is the mechanism of inheritance of this trait? Sandra Daniel recessive dominant Tom 990 Alan QUESTION 4 George Sam Tina Christopher Arlene Wilma Ann O Carla R Update Michael In the pedigree below, all shaded individuals express the gene in question. For example, Arlene "has" the trait, she displays the phenotype in question. For example, if we were following the inheritance pattern of a widow's peak, Arlen a widow's peak (that…arrow_forward-ral Biology mmer Session 1 2021/BIO 100/D1/ Assessments/ BIO 100 Test- Genetics Sickle cell anemia is an inherited red blood cell disorder in which there are not enough healthy red blood cells to carry oxygen throughout the body. The allele that causes sickle-cell anemia is autosomal recessive (s), and the dominant allele can be represented by S. How many offspring will be affected by the disorder if the mother is a carrier, and the a. father appears to be normal? (Include the gender) b. How many will become carriers? (include the gender) A BI 四 四 II I!!arrow_forwardCould you please help me with figuring out the answers to these Genetics practice questions? My professor does not provide the answers and I have done however do not know if I am right. I have two more pictures of problems from where the submitted ones end of.arrow_forward
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