Question

Page 2 NAME: 6. The failure of homologous chromosomes for sister chromatids) to separate properly during cell division is called a) aneuploidy b) triploidy c) non-disjunction d) autosomal dysfunction 7. Ia diploid organism has the genotype AAB, what of its gametes would you expect to have the genotype AB (assume that A/a locus and B/blocus are found on different chromosomes)? a) 1996 b) 2596 c) 5036 d) 7596 8. Phenylketonuria is an inherited human genetic disorder resulting from a mutation to the PAH gene. Individuals with mutant forms of the PA gene exhibit leaming deficits, abnormal skin pigmentation, as well as heart problems. This is an example of a) pleiotropy b) a polygenic trait c) incomplete dominance d) codominance e) epigenetic inheritance 9. A homozygous female (LLM) produces red blood cells with the "M type glycoproteins. A homozygous male (LL) produces red blood cells with the "N type glycoprotein. The give birth to 6 children: 3 females and 3 males Each of their offspring (LL) have red blood cells with M and N type glycoproteins. This is an example of: a) pleiotropy b) a polygenic trait c) incomplete dominance d) codominance e) epigenetic inheritance 10. Let R red and r = white. A female fruit fly with red eyes (XXX) mates with a male fruit fly with white eyes (XY). Their male offspring: a) are heterozygous b) all have white eyes c) have a 1:1 white eye: red eye ratio d) are hemizygous II. In flies, blue eyes (B) is dominant to red eyes (b). You have a male and female fly, each has blue eyes but neither are true-breeding. The offspring of their cross follow a 3:1 ratio blue red and there are no differences between sexes. What type of inheritance pattern does this describe? a) X-linked b) Y-linked c) autosomal d) epistasis

Answer 1

Q6 | Ansa) a) aneuploidy tinis | Explanation or a inte Nona disiunction is the falilure of i Homologous. Chromosomes or ofister i ochromatids ito separate properly in during cell division, the results in daughter cells with abnormal chromoe 'n som å numbers. Y e aneuploidy 001