Name _________________________________ Period ________
Heredity and Reproduction Quiz
1. ___________________________ is the study of how traits are passed on or inherited.
a) dominant traits
b) ratio
c) phenotype
d) genetics
2. A unit of genetic material or factor that determines a trait
a) Carrier b) DNA c) chromosome d) Gene
3. What is an allele?
a) A version of a gene
b) A type of cell.
c) A type of mutation.
d) A blood type
4. What is a gene?
a) An entire chromosome that codes for a trait
b) a piece of clothing
c) a piece of a DNA on chromosome that codes for a trait
d) Chemical messengers in your brain that code for a trait
5. Which sentence is FALSE?
a) All organisms have 23 pairs of DNA.
b) Chromosomes are made of genes.
c) DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine
d) DNA is the recipe for life.
6. Where are chromosomes found?
a) vacuole
b) cell membrane
c) nucleus
d) mitochondria
7. What is heredity?
a) A trait you inheret from your parents.
b) The passing of 46 chromosomes by each parent to children.
c) The passing down of physical traits from parents to children.
d) The passing of recessive genes.
e) A genetic disorder.
8. Humans have a total of ___________________ chromosomes in the cells of their body.
a) 46
b) 23
c) 69
d) 100
9. What is the correct sequence from the simplest to the most complex?
a) Chromosomes > Genes > DNA > Nucleus > Cell
b) Cell > Nucleus > Chromosomes > DNA > Genes
c) Cell > Genes > Chromosome > Nucleus > DNA
d) Genes >DNA > Chromosome > Nucleus > Cell
10. Describe the difference between sexual and asexual reproduction.
a) Sexual reproduction requires one parent, but asexual requires two.
b) Sexual reproduction produces identical offspring, but asexual produces offspring that are a
combination of both parents.
c) Sexual reproduction requires two parents, but asexual requires one
d) Sexual reproduction is faster than asexual reproduction
11. Which organism would you classify as sexually reproducing?
a) An amoeba that splits through binary fission
b) A starfish that reproduces by breaking off and regenerating parts of its body
c) A chicken egg that is fertilized by a rooster
d) A strawberry that reproduces through runners in the ground
12. The process of cell division which forms cells having the same number of chromosomes as the
parent cell is:
a) meiosis I b) mitosis
c) fertilization d) meiosis II
13. The process of cell division which forms cells having the half the number of chromosomes as the
parent cell is:
a) mitosis b) meiosis c) somatic cell formation d) zygote
14. Which of the following best describes a DNA molecule?
a) double helix b) contains ribose
c) made of amino acids d) contains Uracil