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Genetics Review 2
Test Description: DNA, Genes, Chromosomes, Genetics Vocabulary, Punnett Squares, Types of Reproduction, Selective Breeding
Instructions: Answer all questions to get your test result.
1) Genes carry information that determines our
A
DNA
B
genotype
C
traits
D
heredity
2) As a result of asexual reproduction, the daughter cells are
A
identical.
B
different.
3) What did Gregor Mendel complete his studies on?
A
Pea Plants
B
Dogs
C
Bumblebees
D
Dinosaurs
4) What is a genotype? Give an example.
A
The genetic makeup of an organism. Ex: Hair Color
B
The physical appearance of an organism. Ex: Eye color
C
The physical appearance of an organism. Ex: GG
D
The genetic makeup of an organism. Ex: gg
5) What makes up a nucleotide?
A
Sugar
B
All of these make up a nucleotide
C
Phosphate
D
Base
6) Explain Mendel's studies and what he discovered.
A
He discovered that genes are located on chromosomes.
B
He crossed pea plants and discovered asexual reproduction in plants.
C
He crossed pea plants and discovered that one trait is dominant over the other.
7) Where are genes located?
A
on nucleotides
B
on cells
C
on DNA
D
on chromosomes
8) How many chromosomes are in sex cells of humans?
A
10
B
23
C
46
D
50
9) What is the purpose of a punnett square?
A
To label an organism
B
To predict the genotype of the offspring
C
To predict the genotype and phenotype of the offspring
D
To predict the phenotype of the offspring
10) What is genetics?
A
Receiving traits from grandparents
B
The passing of traits from parents to offspring.
C
The study of cells.
D
The study of how traits are passed from parent to offspring.
11) What makes up a gene?
A
Similar chromosomes
B
Tightly coiled DNA
C
Many nucleotides
D
Different chromosomes
12) If a cell has 25 chromosomes, how many will it have after it undergoes mitosis?
A
25
B
30
C
13
D
50
13) What is a phenotype? Give an example.
A
The physical appearance of an organism. Ex: Height
B
The physical appearance of an organism. Ex: Gg
C
The genetic makeup of an organism. Ex: GG
D
The genetic makeup of an organism. Ex: Hair color
14) What's the difference in asexual and sexual reproduction?
A
Asexual: 2 parents/ different offspring. Sexual: 1 parent/ identical offspring
B
Asexual: 1 parent/different offspring. Sexual: 2 parents/ identical offspring
C
Asexual: 1 parent/ identical offspring. Sexual: 2 parents/ different offspring.
D
Asexual: 2 parents/identical offspring. Sexual: 1 parent/ different offspring
15) What does meiosis produce?
A
Skin cells
B
Sex cells
C
Liver cells
D
Neurons
16) Bacteria dividing by binary fission is an example of
A
asexual reproduction.
B
sexual reproduction.
C
neither type of reproduction
D
both types of reproduction
17) Why would farmers practice selective breeding?
A
To produce crops that are resistant to disease
B
To produce crops that require more fertilizer
C
To produce crops that require a lot of water
D
To produce crops that are sensitive to extreme heat
*select an answer for all questions
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