chromosomes

How many pairs of chromosomes are in a human being?

• 23

• 44

• 89

• 72

Where are chromosomes found in a cell?

• In the neutron of the cell.

• In the nucleus of the cell.

• In the proton of the cell.

• In the cell membrane of the cell.

Human eggs and sperm are _____, and each has ____ chromosomes.

• diploid, 23

• diploid, 46

• haploid, 23

• haploid, 46

Two identical copies of a single replicated chromosome that are connected by a centromere.

• Chromatin

• Homologous chromosomes

• Sister chromatid

• Centromere

In the following structure, the circled item is a

• chromosome

• chromatid

• centromere

• chromatin

The number of chromosomes _____ in different species

• vary

• are the same

Chromosomes that have the same sequence of genes and the same structure are ___________.

• homologous chromosomes

• alleles

• phenotypes

• genotypes

The actual fusion of an egg and sperm is called:

• genetics

• cross

• autosomes

• fertilization

Chromosomes are made from protein and what other molecule?

• Ammonia

• ATP

• DNA

• Carbon Dioxide

Males have

• 2 X Chromosomes

• 1 X Chromsome

• 1 X and 1 Y Chromosome

• 2 Y Chromosomes