Which statement correctly describes human chromosomes?
a. The haploid number is 22
b. Human gametes end up with two of each type of 23 chromosomes.
c. There are 42 pairs of chromosomes.
d. The diploid number is 46.
e. Human gametes end up with one of each type of 22 chromosomes.
ANSWER: d
You might also like to view...
In transduction, bacteria acquire new genetic information in the form of:
A) bacterial genes. B) naked DNA. C) R-factors. D) viral genes.
Mendel crossed true-breeding plants having yellow peas with plants having green peas. The resulting
plants all had yellow peas. An F1 cross resulted in of the plants having yellow peas and of the plants having green peas. What does this tell you about the alleles for color?
a. yellow is usually the dominant color, but sometimes green can be dominant b. green is the dominant color c. yellow is the dominant color d. yellow is the recessive color e. the F1 plants must have had some green peas that went unnoticed.
According to the old Linnaean scheme of classifying the living world into either animals or plants, any organism that could photosynthesize was considered a plant. What kingdoms in the new system contain photosynthetic organisms and what criteria are now used to group them?
What will be an ideal response?
What fraction of the time will the cross of Aa Bb Cc with Aa Bb Cc produce an offspring that
expresses the phenotype represented by the dominant gene C (aa bb C_)? a. 1/32 b. 3/64 c. 1/16 d. 9/64 e. 27/64