All human cells, except sex cells, are diploid and have 23 pairs of chromosomes. Human sex cells, such as egg and sperm, are haploid and have _______ chromosomes.
a) 23
b) 12
c) 11.5
d) 46

Plant species A has a diploid chromosome number of 12. Plant species B has a diploid number of 16. A new species, C, arises as an allopolyploid from A and B. The diploid number for species C would probably bea. 14.b. 16.c. 28.d. 56.

If one species (2n=10) crosses with another species (2n=18), producing an allopolyploid offspring, what is the ploidy of the offspring?a. 2n=10b. 2n=18c. 2n=10+18=28d. 4n=36 +20=56

What is a locus?

How many genes are present in the human genome?

If an intestinal cell in a grasshopper contains 24 chromosomes, then a grasshopper sperm cell contains ___________ chromosomesa. 6b. 12c. 24d. 48

Which of the following statements correctly describe the relationship between genes and chromosomes?a. Genes are chromosomes;b. Chromosomes contain many genes;c. Genes are made up of hundreds or thousands of chromosomes;d. Genes are assorted independently during meiosis, but chromosomes are not;e. More than one of the above is correct.