_________ of the genes found on the X chromosome are duplicated on the Y chromosome.
a. All
b. None
c. Most
d. Some
Question 2
You were recently introduced to your roommate's sibling. To your surprise, even though the siblings are the same sex, they look nothing alike. Which of the following is the best explanation of this situation?
a. They must have different parents, as genetic inheritance ensures that they share a significant number of genes.
b. Although they started out very similar genetically, their genotypes have changed during development to make them look very different.
c. Given the number of different combinations of genes possible during reproduction, it may be that the two siblings don't really share many gene alleles.
d. One has expressed only recessive genes, while the other has not.
Open space is found in a Lodgepole pine stand after thinning.
Mutations of haplosufficient genes are recessive
Genes, Serotonin, and Personality
A colorized image of the human male chromosome set
Unbalanced, reciprocal balanced, and Robertsonian chromosome translocations
The Hfr chromosome time-of-entry map is assembled from the recombinant data