Which statement correctly describes human chromosomes after meiosis I?
A. The haploid number is 22.
B. Human gametes end up with two of each type of 23 chromosomes.
C. There are 46 chromosomes in each cell.
D. Each of the 23 chromosomes contains two sister chromatids.
E. Human gametes end up with one of each type of 22 chromosomes.
Answer: D
You might also like to view...
Short tandem repeats (STRs)
A. are useful in identifying specific individuals. B. are important sites in vectors where foreign DNA can be integrated. C. are errors that can arise during DNA sequencing. D. are DNA fragments generated during PCR.
The appendix is a vestigial structure in humans
Indicate whether the statement is true or false.
If you were to prune the shoot tips of a plant, what would be the effect on the plant and the leaf area index?
A) bushier plants; lower leaf area index B) tall plants; lower leaf area index C) tall plants; higher leaf area index D) short plants; lower leaf area index E) bushier plants; higher leaf area indexes
One difference between gram-positive and gram-negative bacteria is that
A) gram-positive bacteria have more peptidoglycan in their cell walls. B) gram-positive bacteria have fimbriae but gram-negative bacteria do not. C) gram-positive bacteria are spiral-shaped, and gram-negative bacteria are either rod-shaped or spherical. D) only gram-negative bacteria can form endospores.