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