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- no need to explain just need n=to know if it a.b.c and d. 1.) In a species of dog, a mutant gene that causes deafness is found on the Y chromosome. What type of offspring will be produced between a cross of male dog whose father is deaf, and female dog whose father is not deaf? a.) 25% normal female dogs, 25 % deaf female dogs, 25 % normal male dogs, 25 % deaf male dogs b.) 50% normal female dogs, 50 % deaf male dogs c.) 50% deaf female dogs, 50 % deaf male dogs d.) 50% normal female dogs, 25 % deaf male dogs, 25% normal male dogs 2.) Mendel crossed true breeding plants that had yellow pods with true breeding plants that had green pods. Yellow pod colour (Y) is dominant over green pod colour (y). Predict the genotypes and phenotypes of F1 generation. a.) yellow pods with genotype yy b.) yellow pods with genotype Yy c.) green pods with genotype Yy d.) green pods with genotype YyEvery chromosome has the same identical genes as every other chromosome. (T or F) Explain your answer.Albinism is a condition in which pigmentation islacking. In humans, the result is white hair, nonpigmented skin, and pink eyes. The trait in humans iscaused by a recessive allele. Two normal parentshave an albino child. What are the parents’ genotypes?What is the probability that the next child will bealbino?
- White (w) coat color in guinea pigs is recessive to black (W). In 1909, W. E. Castle and J. C. Phillips transplanted an ovary from a black guinea pig into a white female whose ovaries had been removed. They then mated this white female with a white male. All the offspring from the mating were black (W. E. Castle and J. C. Phillips. 1909. Science 30:312–313). a. Explain the results of this cross. b. Give the genotype of the offspring of this cross. c. What, if anything, does this experiment indicate about the validity of the pangenesis and the germ-plasm theoriesMaple syrup urine disease is an autosomal recessive gene. The R allele leads to a normal protein product, whereas r leads to a mutant protein. Which genotype below will display the Maple syrup urine disease phenotype? A. Rr B. RR C. rr D. Rr and rrWhen DNA sequence from a diploid individaul is of a 1,0000 nucleotide region. FInd the # of pairwaise differences you can expect between the 2 of these alleles.
- This pedigree consist of cystic fibrosis that is an inherited disease caused by f a recessive allele. Find the genotypes of X and M? Given: O normal female □ normal male ◍ cystic fibrosis female ▨ cystic fibrosis male A) M= Ff X=Ff B) M=Ff X=ff C) M=ff X=ff D) M=ff X=FFA couple comes to you, a genetics counselor, asking for you to explain to them their risk of having a child with cystic fibrosis. Cystic fibrosis is a recessive condition that impacts the lungs and the digestive system. The man, Julian, has a brother with the condition. He was tested for the gene, and he found out that he is a carrier (Ff), and his significant other, Gabby, is also a carrier (Ff). Use this information to answer the quesitons below. Identify the genotype of Julian. Homozygous recessive Homozygous dominat HeterozygousA woman who is heterozygous, Bb, has brown eyes; B (brown) isthe dominant allele, and b (blue) is recessive. One of her eyes,however, has a patch of blue color. Give three different explanationsfor how this might have occurred?
- Genetics - The following cross occurs: AaBBcCddeE x aabBCcDdee Trying to calculate the proportion of the F1 generation that has the genotype aaBbccddee.NO NEED TO EXPLAIN, JUST GIVE THE ANSWER An allele is __________ if its effect masks that of a(n) __________ allele paired with it. Select one: A. codominant; recessive B. dominant; recessive C. recessive; dominant D. recessive; codominantA man is brachydactylous (very short fingers; rare autosomal dominant), and his wife is not. Both can taste thechemical phenylthiocarbamide (autosomal dominant;common allele), but their mothers could not.a. Give the genotypes of the couple.If the genes assort independently and the couple hasfour children, what is the probability ofb. all of them being brachydactylous?c. none being brachydactylous?d. all of them being tasters?e. all of them being nontasters?f. all of them being brachydactylous tasters?g. none being brachydactylous tasters?h. at least one being a brachydactylous taster?
