Which behavioural or environmental factors have been shown to influence the probability of trisomy 21? Heavy metal exposure Pesticide exposure Both A & B None of the above
Q: Explain briefly following: 1. Alleles 2. Sex links 3.lethal genes 4. Sex limited and sex…
A: Genetics is the branch of science that deals with study of inheritance. Inheritance is the…
Q: A couple gives birth to a healthy baby girl. As the girl grows and develops, they later find out she…
A: Turner syndrome is a syndrome in which the female is born with only one X chromosome. Its Symptoms…
Q: 3. Black hair is homozygous dominant. Brown hair is heterozygous. Blonde hair is homozygous…
A: Incomplete dominance is a type of inheritance is characterized by the blending of traits of the…
Q: What is the probability that parents with the following A superhero female? XM-XML XMIY 50% of…
A: Since you have asked multiple questions , we will solve the first question for you. If you want any…
Q: PKU disease is recessive. A man and a woman are both carriers for PKU disease. Determine the…
A: KU disease is recessive. A man and a woman are both carriers of PKU disease. NormALLELE---------P;…
Q: The probability of having an individual recessive for all gene pairs from the cross Aabb x aaBb is O…
A: This is a case of dihybrid cross because there are involved two genes. These genes are A and B.
Q: Assuming the dominant phenotype is shaded, what is the genotype of individual 6? X-linked Dominant…
A: Pedigree is a chart that represents the inheritance of characters in a family. Broadly, there are…
Q: A female has a family history of Duchenne muscular dystrophy, a recessive sex- linked condition that…
A: Since, the disorder is sex linked recessive, we have, Genotype of affected female - XDXD Genotype…
Q: Which of the following can arise from a zygotic mitotic problem in an individual with a normal XY…
A: Following condition arised due to Error in zygote mitosis in an individual with XY genotype.
Q: A man is heterozygous for dimples (Dd) and a carrier for PKU( Pp )disease. He marries a woman who is…
A: Introduction :- Genotype refers to the genetic makeup of an organism. Genotype describes an…
Q: Fur color is an X linked trait in cats. Black (XB)is dominant over orange (X'). If an orange female…
A: It is given that the fur color in cat is X linked. It also says that Black (X B ) is dominant over…
Q: In which of the following cases will a Barr body be seen? only XX XY XO…
A: Barr body was a strongly stained inactivated condensed X chromosome found in each somatic cell of…
Q: Which of the following is homozygous dominant? FF O Ft O Ff O f
A: Genes are the specific codes of these amino acids which produces a protein and alleles is the…
Q: The allele's number for each gene :found on sex chromosomes is 9:08 AMV
A: A sex chromosome, (also referred as heterochromosome, or idiochromosome) is a chromosome that…
Q: In a family of five children, what is the probability that four are girls and one is a boy? 1/8 5/32…
A: Probability is the branch of mathematics concerning numerical descriptions of how likely an event is…
Q: 1. Complete a Punnett Square for the cross between a human female (XX) and a human male (XY). What…
A: Punnet square is a square diagram that is used to predict the genotype of progenies and the…
Q: Dizygotic twins result from one egg cell and one sperm cell. one egg cell and two sperm cells. two…
A: To form indistinguishable or monozygotic twins, one fertilised egg (ovum) splits and forms into two…
Q: Alopecia is the condition more commonly known as pattern baldness. Alopecia is a recessive x-linked…
A: X-linked recessive inheritance refers to genetic conditions associated with mutations in genes on…
Q: From this pairing there are three possible genotype outcomes AA, Aa, and aa. Your Punnett square…
A: A genotype is the set of genes that make up an individual.
Q: What is the probability that John is a carrier? probability: What is the probability that both John…
A: First and foremost, the pedigree should be complete. It should be noted that both john's father and…
Q: Hemophilia is an X-linked recessive trait. The wife is hemophiliac, but the man has normal blood…
A: Hemophilia is an X-linked recessive disease, in this disease the blood clotting does not occur which…
Q: T. 13. What percentage of the offspring will be short? 0% Tall Tall T TT TT 14. What percentage of…
A: The alleles are generally of dominant and recessive type and some other forms like codominant are…
Q: A female has a family history of Duchenne muscular dystrophy, a recessive sex- linked condition that…
A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. It consists of purines and…
Q: A black male cat is crossed to an orange female cat what are the expected number (fraction) of each…
A: In cats, the fur pigmentation gene is located on the X chromosome and is an X-linked trait. the X…
Q: Is it possible to determine the genotype of an individual expressing a dominant phenotype? Provide…
A: Test cross When F2 progeny is crossed with recessive parent then it is called test cross. Test…
Q: The human karyotype below 10 11 12 17 13 14 15 16 18 19 20 21 22 results in Patau Syndrome. O…
A: karyotype of a human There are 22 pairs of autosomal chromosomes and one pair of sex chromosomes in…
Q: A male affected with an X-linked dominant trait will have what proportion of offspring affected with…
A: Genetics is the branch of biology that deals with the study of genes, their variation, and heredity…
Q: both parents are dominant tall name 4 possible offspring
A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…
Q: A man who is achondroplastic dwarf with normal vision marries a color-blind woman of normal height.…
A: Achondroplasia is caused by a gene alteration in the FGFR3 gene. The FGFR3 gene makes a protein…
Q: why is the answer 15% do we assume autosomal dominant translates to heterozygous for the trait…
A: Autosomal dominant inheritance is a way a genetic trait can be passed down from the parent to their…
Q: . Refers to a trait showing essentially continuous phenotypic variation 1. Incomplete Dominance 3.…
A: A phenotype is expressed by the combination of genetic and environmental factors. Phenotypic…
Q: A man and woman have 5 children, all healthy boys. They would like a daughter. What is the…
A: There is an equal chance of occurence of a boy or a girl.
Q: the ethical risks and potential consequences later in life of not disclosing a patient’s CAIS…
A: Androgen heartlessness disorder is a condition that influences sexual advancement before birth and…
Q: .Two heterozygous individuals have six children, the probability of exactly four homozygous…
A: The binomial expansion theorem is used to predict the probability of unordered combination of…
Q: Dark hair- Dominant Blonde hair- Recessive Mom is Homozygous recessive and Dad is homozygous…
A: Homozygous recessive, means will cause disease only when both copies are present.
Q: ype out the gametes that the mother and potential fathers can create select all daddy's that can…
A: Answer. Genotype: The genotype is defined as the genetic constitution of an individual for any…
Q: 4 children had been produced, all of which are normal, what would the probability of the fifth child…
A: Aa x Aa two heterozygous parents A a A AA Aa a Aa aa the probability of getting a…
Q: What is the probability of two parents, both carriers of a defective recessive gene, producing a…
A: The term "autosomal" refers to a gene that is found on one of the numbered, or non-sex, chromosomes.…
Q: A couple decided they want to have a total of 7 children. However, they want to set realistic…
A: The genotype of an individual is determine by the genetic constituent of cell. The individual has…
Q: As the age of an individual increases, which of the following phenomenon has greater chance of…
A: Heredity as we know is the passing on of traits from parents onto their offsprings. Organisms that…
Q: Ocular albinism is a sex-linked recessive disease carried on the X chromosome. A female carrier…
A: Ocular albinism sex linked recessive disease. The mother is carrier. The genotype of mother is X^O…
Q: . In humans, the condition for normal blood clotting dominates hemophilia. Both alleles are…
A: An allele can be dominant or recessive and dominant allele always masks or hide the expression of…
Q: Which of these is homozygous? Aa OAO O AA XY O AB
A: Biological macromolecules are those large molecules that are necessary for the survival and growth…
Q: A homozygous mother has retinoblastoma, a dominant sex-linked disorder carried on the X chromosome.…
A: The retinoblastoma is a sex linked dominant disorder. The father does not have this disorder. The…
Q: 4 offspring, 3 normal and 1 (with disease) What is the probability for this if the father (has the…
A: A pedigree that depicts a dominantly inherited trait has a few key distinctions. Every affected man…
Q: 2 %3D 2 3. 6. 2 4 6. IV
A: A pedigree analysis helps in determining the pattern of inheritance of genotypes within individuals…
Q: If a female who is a carrier of an X-linked recessive gene for hemophilia mates with a male who does…
A: Hemophilia is a genetic bleeding disorder in which blood don't clot normally. It runs in the…
Step by step
Solved in 2 steps
- Unattached earlobes is dominant to attached earlobes. Two parents, both with unattached earlobes, had a child with attached earlobes. What are the chances that their next child will have attached earlobes? 25% 50% 0% cannot be determined from this infoA man is heterozygous for dimples (Dd) and a carrier for PKU( Pp )disease. He marries a woman who is also heterozygous for dimples and a carrier for PKU disease. Determine the following Genotype of man: __Dd Pp Genotype of woman: ___ Dd Pp Possible gametes of the man: Possible gametes of the woman: Possible phenotypes of their children and the ratio of each:1.Determine the possible kinds of gametes each parent could be produced by: Jane (mother): Tt XcXc IBi -Taster, Color-blind female, Blood type A John (father): tt XcY IAIB- Non-taster, Color-blind male, Blood type AB 2. What percentage of your children would you expect to be boys? Girls?
- . In humans, the condition for normal blood clotting dominates hemophilia. Both alleles are sex-linked to the X chromosome. Two parents produce daughters who are all carriers and sons who are all normal. What are the probable genotypes of the Need the genotype, phenotype gametes and a punnett squareA female has a family history of Duchenne muscular dystrophy, a recessive sex- linked condition that is carried on the X chromosome. She does not have the disease. Her brother, sister, and father all have the disease. while her mother does not. She recently married a male with no family history of the disease. If they decide to have children, what percentage of their sons will have the disease? * 0 0% 0 25% O 50% 0 100%Based on this karyotype, what is the probability that any one of this women's children would would also be carriers for Down's Syndrome? a 100% or 1/1 b 50% or 1/2 c 25% or 1/4 d 10% or 1/10 e None would be carriers
- What are the genotypes of the gametes of the following individuals: a.) BbCCddEe b.) RRggWw c.) ppRR d.) AaTtA male has male pattern baldness, an x-linked recessive trait. Which of the following could be his genotype? Group of answer choices A.) XbYb B.) bb C.) XBY D.) XbYA woman is homozygous dominant for short fingers. She marries a man who is heterozygous for short fingers. What will the punnet square look like
- A couple are both phenotypically normal but their son suffers from hemophilla, a sex linked recessive disorder. What fraction of their children are likely to suffer from hemophilia. what fraction are likely to be carriers.PKU disease is recessive. A man and a woman are both carriers for PKU disease. Determine the following: Genotype of the man: Genotype of the woman: Possible genotypes of children: Possible phenotypes of children: Probability of PKU disease in their children:Suppose a woman has a recessive X-linked disease. Her husband doesnot have the disease. What is the chance that their second child has thedisease?a. 100% c. 25%b. 50% d. 0%
