Chapter 6 Biology- Meiosis, Mendel, Genetics

Two similar chromosomes that you inherit from your parents (one from your mother, one from your father) that have the same length, appearance, and genes are called

• homologous chromosomes

• sister chromatids

• sex chromosomes

• homozygous alleles

How many chromosomes are in the human sex cells produced by meiosis?

• 44

• 22

• 46

• 23

Which of the following cell types is diploid?

• egg

• sex cell

• somatic cell

• gamete

A diploid cell is

• 2n

• n

• 3n

• 4n

What is an autosome?

• A chromosome that determines sex characteristics of an organism.

• A chromosome that does not determine the sex characteristics of an organism

• A chromosome that is not involved in meiosis.

• A chromosome that is X or Y.

How many autosomes are in a human gamete?

• 2

• 22

• 0

• 1

Which process best describes the process of meiosis?

• occurs in body cells

• results in genetically identical cells

• happens only in haploid cells

• produces haploid gametes

At fertilization, what happens to the sex cells?

• They retain half their chromosomes.

• Half of the cells copy their DNA twice.

• Their nuclei fuse to form one nucleus.

• One becomes an egg and one becomes a sperm.

A distinguishing characteristic that can be inherited is a(n)

• allele

• cross

• gene

• trait

A Punnett square that crosses a big M and a little m with a big M and a little m is a

• monohybrid heterozygous-heterozygous cross

• a 1 in 4 probability of heterozygous offspring

• a dihybrid heterozygous heterozygous cross

• a 3 in 4 probability of homozygous offspring