Chromosomes & Reproduction

The diploid number of human chromosomes is

• 23
• 46
• 92

The haploid number of human chromosomes is

• 11
• 12
• 23
• 46

Autosomes are

• chromosomes found in autotrophs, only
• chromosomes that automatically correct all errors in the DNA
• chromosomes that determine traits other than sex
• chromosomes that determine the sex of the individual

An organism's reproductive cells, or sex cells, are called _____.

• bacteria

• prokaryotes

• gametes

• pathogens

A _______ is a segment of DNA that codes for a specific protein or RNA molecule.

• gene

• gamete

• chromosome

• chromatid

The 2 exact copies of DNA in a chromosome are called ________.

• chromatids

• genes

• mutations

• pathogens

The two sister chromatids are attached to each other at a point called the __________ of a chromosome.

• zygote

• autosome

• gene

• centromere

How many chromosomes does a human body cell have, total?

• 48

• 46

• 23

• 47

Chromosomes that are paired by size and content are called _______ chromosomes.

• homeostasis

• homologous

• matching

• sister

Cells that contain 2 sets of chromosomes are called _________ (2n).

• diploid

• haploid

• triploid

• polyploid