chromosome
Chromosomes contain DNA. This topic is part of Biology within Science & Nature. This page currently draws on 16 supporting questions, with answers and bonus facts available below.
chromosome trivia questions
Chromosomes are structures that carry what?
Answer: Genetic information
Bonus fact: Chromosomes contain DNA.
How many chromosomes are in a typical human body cell?
Answer: 46
Bonus fact: Humans usually have 23 pairs.
What protein family helps package DNA into chromosomes?
Answer: Histones
Bonus fact: DNA wraps around histone proteins.
What protective chromosome-end structures tend to shorten as many cells divide?
Answer: Telomeres
Bonus fact: Telomere shortening is one feature associated with cellular aging.
The most common inherited red-green color-vision deficiency is often linked to what chromosome?
Answer: X chromosome
Bonus fact: X-linked inheritance makes it more common in males.
The chromosome theory of inheritance states that genes are located on what?
Answer: Chromosomes
Bonus fact: It connected Mendel's laws with cell biology.
Which scientists are most associated with proposing the chromosome theory around 1902?
Answer: Walter Sutton and Theodor Boveri
Bonus fact: Their work linked chromosome behavior to Mendelian inheritance.
Small circular DNA molecules found in addition to the main bacterial chromosome are called what?
Answer: Plasmids
Bonus fact: Plasmids can carry additional genes separate from the main chromosome.
Before binary fission, a bacterial cell copies what?
Answer: DNA
Bonus fact: Each daughter cell needs a copy of the chromosome.
How many chromosomes are normally found in a human egg or sperm cell?
Answer: 23
Bonus fact: Gametes carry one chromosome from each pair.
Which modern gene-editing system is commonly proposed for gene drives?
Answer: CRISPR-Cas9
Bonus fact: CRISPR can copy a drive sequence into the matching chromosome.
Human mitochondrial DNA is generally inherited from which parent?
Answer: Mother
Bonus fact: Mitochondrial DNA is a small circular chromosome located inside mitochondria.