GCD Exam 1 Questions with All Correct Answers

GCD Exam 1 Questions with All Correct Answers The length of the index finger is sex-influenced. The short allele is dominant in males, whereas the long allele is dominant in females. If a heterozygous male and a female with short index fingers have offspring together, what are the possible phenotypes of the offspring? - Answer-males with short index fingers and females with short or long index fingers Which of the following statements is false? Select one: a. A true-breeding individual is homozygous. b. An allele is a gene. c. For most species, a chromosome carries a single gene. d. A heterozygote has different alleles for a given gene. - Answer-c. For most species, a chromosome carries a single gene. Correct A heterozygous plant, GgHhIiJjKk is allowed to self fertilize. What is the probability that an offspring will be GGHhIiJjkk? Select one: a. 1/128 = 0.0078 b. 243/1024 = 0.24 c. 1/1024 = 0.00098 d. 1/4 = 0.75 - Answer-1/128 = 0.0078 Hemophilia, type A, is an X-linked recessive trait. A mother without hemophilia and a father with hemophilia have a daughter with hemophilia. If their next offspring is a son, which is the likelihood that this son will have hemophilia? - Answer-50% A female who is IA i has offspring with a father who IB IB. Which blood type(s) would not be possible for their offspring? - Answer-Type A and Type O In humans, an individual who is XXY would be a? - Answer-male An explanation for overdominance is Select one: a. the inability of a pathogen to propagate in cells. b. homodimer formation. c. variation in functional activity. d. all of the above. - Answer-d. all the above