In humans, an X-linked disorder called coloboma iridia (a fissure in the iris) is a recessive trait. A
normal couple has an afflicted daughter. The husband sues the wife for divorce on the grounds of
infidelity. Would you find in his favor? What will be an ideal response?
ANS: Yes, the daughter would have to inherit the recessive trait from both parents and since the
husband is normal and has only one X to give, the daughter could not have gotten the recessive allele
from him`.
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Where do kinetochores attach to chromosomes?
A. Telomeres B. Specific genes on the chromosome C. Centromeres D. They don't attach to DNA
In the Hardy-Weinberg equation "2pq" represents
a. the homozygous recessive genotypes. b. the heterozygous genotypes. c. the homozygous dominant genotypes. d. the total pool of alleles for the dominant phenotypes. e. the heterozygous phenotypes
Most biochemical macromolecules are polymers, which are chains of ________.
A. repeating monomers B. electrolytic molecules C. hydrogen bonds D. hydrophobic molecules E. repeating carbohydrates
DNA consists of two antiparallel strands of nucleotides held together by
A. hydrogen bonds. B. ionic bonds. C. covalent bonds. D. peptide bonds.