Question 1
Species A has 2n=16 chromosomes and species B has 2n=14 chromosomes. Offspring that are diploid for either 22 or 23 chromosomes are most likely?
◦ autotriploids of species A
◦ autotetraploids of species B
◦ allotriploids
◦ allotetraploids
◦ allohexaploids
Question 2
The flies with variegated eye color had what abnormal chromosome structure?
◦ X-chromosome inversion that moves the
w+ gene to a different orientation on the chromosome in some cells following X-ray exposure
◦ X-chromosome translocation that moves the
w+ gene to a region of heterochromatin on another chromosome in some cells following X-ray exposure
◦ a mutation in the
w+ gene following X-ray exposure that causes the gene to be overexpressed in a tissue-specific manner
◦ X-chromosome deletion that deleted the
w+ gene in some cells following X-ray exposure
◦ a mutation in a somatic chromosome that causes the
w+ gene to be translocated to the X-chromosomes following X-ray exposure
The structure of stomatal guard cells affects their function.
The structure of the rib cage.
The Chemical Structure of DNA DNA is composed of nucleotide pairs.
Levels of protein structure: Primary structure
A human mitotic chromosome preparation processed
Lewis structure of (CH3)2CHOCH2CH2CH2OH