BIOD 210 GENETICS Exam MODULE 1 Questions and Ansẉers update

BIOD 210 GENETICS
Exam MODULE 1 Questions and
Ansẉers
2026\2027 update



1. Q: What is genetics?
ANSWER The branch of biology that studies heredity and the
variation of inherited characteristics.


2. Q: Who is considered the "father of genetics"?
ANSWER Gregor Mendel.


3. Q: What is a gene?
ANSWER A basic unit of heredity and a sequence of nucleotides in
DNA that codes for a specific molecule (usually a protein).


4. Q: What is a chromosome?
ANSWER A thread-like structure of nucleic acids and protein found in
the nucleus of most living cells, carrying genetic information in the
form of genes.


5. Q: How many chromosomes do humans have?
ANSWER 46 chromosomes (23 pairs).

, 6. Q: What are autosomes?
ANSWER Chromosomes that are not involved in determining the sex
of an individual (humans have 22 pairs).


7. Q: What are sex chromosomes?
ANSWER Chromosomes that determine the biological sex of an
individual (X and Y in humans).


8. Q: What is a karyotype?
ANSWER An organized visual profile of a person's chromosomes.


9. Q: What is a somatic cell?
ANSWER Any cell of a living organism other than the reproductive
cells.


10. Q: What is a gamete?
ANSWER A reproductive cell (sperm in males, egg in females) that
carries half the genetic information of a somatic cell.


11. Q: What does diploid (2n) mean?
ANSWER A cell containing two complete sets of chromosomes, one
from each parent.


12. Q: What does haploid (n) mean?
ANSWER A cell containing only one complete set of chromosomes.