1) Plumage colour in mallard ducks is controlled by a number of alleles at one locus. MR is the allele for restricted mallard pattern, M for mallard and m for dusky mallard. The dominance hierarchy is MR>M>m. Determine the genetotypic and phenotypic ratios for the following crosses a) MRMR X MRM b) MRMR X MⓇm c) MⓇM x MⓇm d) MⓇm x Mm e) Mm x mm
Q: ) Haemophilia is a serious medical condition where blot clots extremely slowly. A sex linked…
A: There are a few important points : In sex-linked recessive alleles most affected individuals are…
Q: Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the…
A: Intestinal epithelial cells pump glucose into the cell against its concentration gradient using the…
Q: bioreactors
A: In biotechnology, bioreactors are used to guide tissue structure, organization, and ultimately…
Q: Describe some strategies that could be implemented to reduce the transmission of giardiasis.
A: Giardiasis is a protozoan disease caused by the microscopic parasite Giardia duodenalis. Giardia is…
Q: DNA Nano measurements: width of the helix, spacing between nucleotides Use the functional groups…
A: My synthetic nucleotide would have a thymine base connected to a deoxyribose sugar and a phosphate…
Q: Name and briefly describe two types of stroke. What are the main risk factors for a stroke? Identify…
A: There are a few important points: we know that the adult brain consists of the forebrain, midbrain,…
Q: Is it true or false? Write T (True) or F (False). a. Insulin is important for glucose uptake to the…
A: Insulin resistance is a medical condition during which cells of muscles, fat, and liver stop…
Q: Pre-lab task 3: List the general characteristics of fungi, animals and plants and based on those…
A: Introduction : Taxonomy is the systematic approach to naming and categorizing all of the various…
Q: BELL JAR EXPERIMENT In the early 1770s, Joseph Priestley conducted a series of experiments that…
A: Introduction Plants produces their own food (carbohydrate) in the presence of sunlight, carbon…
Q: iCQ5) viruses are able to by using the enzyme integrase. a) Lysogenic; Release from the cell without…
A: An infectious bacterium called a virus is made up of a protein-coated fragment of nucleotides.
Q: Describe the most common type of genetic variability.
A: Genetic variability is the presence of variation in the genetic makeup of the organisms that leads…
Q: Chlamydomonas is the closest living relative to all 'true' plants. True or False?
A: The given statement is: False.
Q: Beadle and Tatum removed arginine and other substances from the nutrient medium of the mutated…
A: Beadle and Tatum experimentally proved the "one gene one enzyme" hypothesis. They took wild-type…
Q: 3. Explain what the central dogma of molecular biology is?
A: ANSWER: This fundamental principle of molecular biology states that there is a predetermined path…
Q: 1. The following graphs are from 3 different patients. For each patient, analyze their bloodwork and…
A: The pancreas, an endocrine gland, secretes the hormone insulin. In a healthy person, it controls…
Q: 2. A professional Women's Hockey League (WHL) player is illegally cross-checked by an opponent from…
A: Our kidney plays a major role in maintaining our normal blood pressure. Damaged kidney arteries…
Q: b Rewrite his hypothe: C After Spallanzani ca
A: a. Spallanzani hypothesized that bats are able to fly in the dark without bumping anywhere as they…
Q: Proteins are constructed by amino acids that are linked together. How many different amino acids…
A: INTRODUCTION Proteins are massive biomolecular and molecular structures that consist of one or…
Q: 10) 0.031709792 11) Convert one million seconds to years. (1 yr with 365 days) 12) Convert 12 liters…
A: These are conversions. In order to convert a numerical value from one unit to the other one should…
Q: a. Clouding of the lens of the eye b. Condition in which blisters appear on the nerves and cause a…
A: A. Cataract B. Neuralgia or shingles C. Ostosclerosis
Q: c) If no genetic variation was observed within a particular population for a given trait, what will…
A: The percentage of a characteristic that may be accounted for by genes in a particular population is…
Q: Draw a molecule of DNA undergoing theta replication. On your drawing, identify (a) the origin of…
A: DNA is a double stranded molecule. DNA replication is Semi conservative. This means that each DNA…
Q: DNA is comprised of four different bases. What are the four different bases? What is so significant…
A: Introduction : The full form of DNA is deoxyribose nucleic acid. It carries genetic information from…
Q: 5 6. In running a fermentation to grow cells, all of the micronutrients are supplied in a vitamin…
A: Note:- Sorry, since you have posted multiple questions so we will be solving the first one for you…
Q: Which of the following is NOT true of deoxyribonucleic acid (DNA)? Stores genetic information that…
A: Introduction : The organic components known as nucleic acids can be found in the form of DNA or RNA…
Q: Compare and Contrast a Chlorophyll lacking plant
A: Chlorophyll-lacking plants and fungi are both organisms that lack the essential green pigment…
Q: Proband cells derived from a HGPS (Progeria) individual will have more abn nuclei in comparison to…
A: The LMNA gene mutations that cause Hutchinson-Gilford progeria syndrome (HGPS) typically cause the…
Q: What are the factors affecting the pathogenicity of a parasitic amoeba? Explain.
A: Amoeba is a single celled or unicellular organism which occupy almost every major lineage of…
Q: draw the p21 promoter. Your drawing should include (1) the start site, (2) the TATA box and (3) the…
A: p21 protein: The p21 protein is a key protein that regulates the DNA repair process inside the…
Q: Name the three connective tissue sheaths that surround a peripheral nerve. Which of these coverings…
A: Neuroregeneration: The regrowth or repair of neural tissues, cells, or cell products is referred to…
Q: Which of the following systems DOES NOT share interrelated functions with the Endocrine System?…
A: Endocrine system comprises of different organs and glands. Endocrine glands secrete hormones that…
Q: Which of the following is a high through put DNA sequencing method that involves distribution c DNA…
A: Identifying the sequence of nucleotides, or bases, in a DNA molecule is referred to as DNA…
Q: 2. Match the correct molecules with the checkpoints below. a. Molecules important for regulating…
A: There are various phases in the cell cycle and various checkpoints present so that if the DNA is…
Q: 4. List the possible sources of error in the preparation of Red Blood Cell suspension?
A: Red cell suspensions are commonly used as a reagent for various serological procedures. They provide…
Q: draw the p21 promoter in a cell with E2F
A: Promoters play a crucial role in gene regulation. They can be activated or repressed by various…
Q: Pre-lab task 1: on the other side of this page, note the size range for typical Escherichia coli…
A: INTRODUCTION E. coli bacteria are commonly found in the intestines of healthy humans and animals.…
Q: Cap, EA1, and Sap are all genes/proteins of interest in this study. For each gene, what gene product…
A: The study focuses on the relationship between the capsule and S-layer of the bacterium Bacillus…
Q: B. Compare the trophozoites of the following parasitic and commensal amoeba. Structure Nucleus…
A: trophozoites:- it is a stage of growth of the sports of parasites inside the host in which they…
Q: Flatworms show bilateral symmetry and some cephalization. True False Some parasitic…
A: Carl Linneaus form animal kingdom along with other 4 kingdom. Under animal kingdom, animals are…
Q: List at least five phenomena that can alter expected Mendelian phenotypic ratios in genetic…
A: Mendelian inheritance is the process of transmission of characters from parents to offspring.…
Q: Explain why dispersal behaviour shown amongst majority of species improves reproductive success.
A: Dispersion is crucial for every species, free-living or parasitic, since a population isolated to a…
Q: What diseases do we vaccinate for and when? Find a detailed schedule of immunization with age span…
A: Vaccines aid in preventing major, frequently deadly diseases in kids and teenagers. The vaccinations…
Q: Compare the differences in the arrangement of the chorion, amnion and placenta in the formation of…
A: Identical twins, also known as monozygotic twins, are twins formed when a single egg is fertilised…
Q: 5-Hepatitis ________ is a DNA virus A-A B-B C-C D-H
A: An inflammation of the liver is known as hepatitis. The problem may go away on its own or worsen…
Q: Which of the following is not true regarding gene regulation that involves DNA bending? a. The…
A: Gene Regulations or regulation of gene expression includes a wide range of mechanisms that's turning…
Q: the signs and symptoms of meningitis, and identify several risk factors. Describe a clinical test…
A: The infection and inflammation of the fluid and membranes surrounding the brain and spinal cord are…
Q: The wild-type (normal) fruit fly, Drosophila melanogaster, has straight wings and long bristles.…
A: Introduction Gene is known as hereditary factor which controls all the characters in living organism…
Q: Is it possible for two parents with achondroplasia to have a average height son (if so how often…
A: One in 20,000 infants have the inherited bone disease achondroplasia. The youngster has the most…
Q: talk about the structure and function of all the cells that are found under the image, and mention…
A: Plants are very complex organisms with well-defined internal structures comprising different types…
Q: s CF respectively? Punnett Squares “So, what’s next?” asked Mike. “First, we’ll collect DNA…
A: Cystic fibrosis is inherited in an autosomal recessive fashion. This means that when two recessive…
Step by step
Solved in 2 steps with 1 images
- When a Chinese hamster with white spots is crossed with another hamster that has no spots, approximately 12 of the offspring have white spots and 12 have no spots. When two hamsters with white spots are crossed, 23 of the offspring possess white spots and 13 have no spots. Q. What is the genetic basis of white spotting in Chinese hamsters?Four alleles determine a rabbit’s coat colour: agouti (C), chinchilla (cch), Himalayan (ch), and albino (c). The order of dominance is C > cch > ch > c. A chinchilla rabbit is crossed with an albino rabbit. What are the possible phenotypes of the offspring? Select one: a. Chinchilla and Himalayan b. Chinchilla, Himalayan, albino, and agouti c. Chinchilla, Himalayan, and albino d. ChinchillaIn mallard ducks, Anas platyrhynchos, plumage is under control of a single gene with three alleles: M, which codes for wild-type mallard plumage; MR, which codes for restricted plumage; and MD, which codes for dominant plumage. all three types of plumage breed true. Deduce the dominance hierarcy of the three alleles based on the following crosses Cross Offspring a. Dusky x Mallard 1/2 Dusky : 1/2 Mallard b. Dusky x Restricted 1/2 Dusky : 1/2 Restricted c. Mallard x Mallard 3/4 Mallard : 1/4 Dusky d. Mallard x Restricted 1/2 Restricted : 1/4 Mallard : 1/4 Dusky
- A-Using incomplete dominance show a Punnett square with a cross between a homozygous red kitten and a homozygous blonde kitten. Let red be “dominant”. Give the F1 and F2 generation genotypes and phenotypes. B-Using incomplete dominance, show a Punnett Square with the cross between a homozygous long-tailed lizard and a homozygous short-tailed lizard. Let long-tailed be “dominant.” Give the genotype and phenotypes for F1 and F2 generations.Given a cross between these two parents: BbCcDDEEFfGgHhjj x BbCcddEeFfGgHHjj where traits B, E, H, J exhibit Mendelian inheritance; C, and F exhibit incomplete dominance; D, and G exhibit co-dominance answer the following: What proportion of the offspring will phenotypically resemble the first parent? What proportion of the offspring will genotypically resemble the second parent? How many phenotypes can be expected from the cross?In mice, the presence of a dominant A allele results in the agouti pattern of fur color, whereas the aa homozygous recessive results in a solid color pattern. The presence of another dominant B allele results in black fur color, whereas the homozygous recessive bb results in brown fur color. The presence of a third dominant C allele is required for any color to be observed (brown or black), whereas the homozygous recessive cc results in lack of any color whatsoever (albino). What is the phenotype of a mouse with the following genotype? Aa bb cc albino Agouti color pattern and brown Solid color pattern and brown Agouti color pattern and black Solid color pattern and black
- Repeat this process for the following genotypic frequencies for the presence or absence of mid-digital hair by a typical 1407 class: Frequency of homozygous dominants (HH, mid-digital hair present): 0.21 Frequency of heterozygous individuals (Hh, mid-digital hair present): 0.16 Frequency of homozygous recessives (hh, no mid-digital hair): 0.63 Total No. of alleles present: _____________ Number of dominant alleles possessed by homozygous dominants: _____________ Number of recessive alleles possessed by homozygous recessives: _____________ Number of dominant alleles possessed by heterozygotes: _____________ Number of recessive alleles possessed by heterozygotes: _____________ Total number of dominant alleles in the population: _____________ Frequency of the dominant allele (H) in the population: _____________ Frequency of the recessive allele (h) in the population: _____________In a species of dog, plaid color is represented by P and purple by p, short -tailed is T and long-tailed is t. What are the genotypes of a male who is purple with a long tail, and a female who is homozygous dominant for both traits? Which answer below is true? PpTT & PPTT pptt & PPTT short-tailed purple & long tailed plaid male: purple w/ long tail & female: plaid w/ short tailIn rabbits, black color (B) is dominant to brown (b), while fullcolor (C) is dominant to chinchilla (c ch). The genes controllingthese traits are linked. Rabbits that are heterozygous for bothtraits and express black, full color are crossed to rabbits thatexpress brown, chinchilla with the following results:31 brown, chinchilla 34 black, full16 brown, full 19 black, chinchillaDetermine the arrangement of alleles in the heterozygousparents and the map distance between the two genes.
- In rabbits, an allelic series helps to determine coat color: C (full color), cch (chinchilla; gray color), ch (Himalayan; white with black extremities), and c (albino; all white). The C allele is dominant to all others, cch is dominant to ch and c, ch is dominant to c, and c is recessive to all the other alleles. This dominance hierarchy can be summarized as C > cch > ch > c. Indicate the phenotypic ratios expected in rabbits with the cross cchch × chc. 1 full color:1 chinchilla 1 full color:1 Himalayan 1 chinchilla:1 Himalayan 3 full color:1 chinchilla 2 full color:1 Himalayan:1 albinoIn domestic chicken, feather colour and shape are two traits which are controlled by autosomal alleles that are co-dominant. Table 2 shows the alleles and phenotype of both traits. The heterozygous state for feather colour is grey while the heterozygous state for feather shape is mildly frizzled. TABLE 2 Trait Allele Effect Feather colour CB Produces black feathers in homozygotes CW Produces white feathers in homozygotes Feather shape SS Produces straight feathers in homozygotes SF Produces frizzled feathers in homozygotes (a)A farmer bred a black frizzled rooster with a grey mildly frizzled hen. Draw a genetic diagram to show the expected results of this cross. Include in your answer the phenotypic ratios. (b)Is it necessary to do a test cross to determine the genotypes of the offspring? Explain your answer. (c)The farmer would like all his chickens grey and mildly…A homozygous black Labrador retriever is crossed with a homozygous yellow Labrador retriever. The heterozygous F1 are all black. When these black F1 are intercrossed, the F2 generation displays a phenotypic ratio of 9 black : 3 brown : 4 yellow. Which of the following could represent genotypes of the yellow F2 dogs? Let A and B represent genes at different loci and let the A allele be dominant to a allele; B allele be dominant to b allele. only aabb only aaB A_B_and aaB. aaB_ and aabbr only A_ B_ aaB_ and A_bb