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WorksheetsBeginning Genetics
Total questions: 25
Worksheet time: 21mins
Name
Class
Date
1.
Which of the following things does NOT happen in interphase?
a)
The cell grows
b)
DNA is copied
c)
Normal cell processes
d)
Cell divides into two daughter cells
2.
In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?
a)
0%
b)
25%
c)
50%
d)
75%
3.
What genotype would go in box 1?
a)
BB
b)
Bb
c)
bb
4.
What genotype would go in box 3?
a)
BB
b)
Bb
c)
bb
5.
B = brown fur b = white fur
In the punnett square, what is the probability for white fur?
In the punnett square, what is the probability for white fur?
a)
0%
b)
25%
c)
50%
d)
75%
6.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
7.
In a heterozygous genotype, the ___________ allele takes over in the phenotype.
a)
recessive
b)
dominant
c)
lower case letter
d)
both
8.
Homozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
9.
Heterozygous is when...
a)
the alleles are the same
b)
the alleles are different
c)
the alleles are absent
d)
the alleles are present
10.
Who is considered the "father of genetics"?
a)
Gregor Mendel
b)
Reginald Punnett
c)
James Watson
d)
Matthias Schleiden
11.
Different forms of genes:
a)
alleles
b)
phenotype
c)
genotype
d)
homologous chromosomes
12.
The passing of genetic traits from parent to offspring:
a)
allele
b)
gene
c)
heredity
d)
homozygous
13.
What is another way of saying "purebred"?
a)
homozygous
b)
dominant
c)
recessive
d)
heterozygous
14.
An organism's genetic make-up:
a)
phenotype
b)
genotype
c)
dominant
d)
recessive
15.
Having two of the SAME alleles for a trait (example HH or hh):
a)
homozygous
b)
heterozygous
c)
recessive
d)
dominant
16.
Having two different alleles for a trait (example Hh):
a)
homozygous
b)
heterozygous
c)
dominant
d)
purebred
17.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
BB
18.
The scientific study of genes being passed by generation.
a)
Botany
b)
Genetics
c)
Zoology
d)
cytology
19.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
20.
In the DNA double helix, we know each rung of the ladder is made up of two bases, Adenine always pairs with Thymine, and Guanine always pairs with -
a)
Cytosine
b)
Guanine
c)
Phosphate
d)
Nitrogen
21.
An organism's body cells always have twice as many chromosomes as its sex cells. If a reindeer has 35 chromosomes in its sex cells, how many would it have in its body cells?
a)
17.5
b)
70
c)
35
d)
46
22.
If mitosis creates body cells, what does meiosis create?
a)
caterpillars
b)
mutated cells
c)
body cells
d)
sex cells
23.
A eukaryote is an organism that has a nucleus. Which of the following substances can NOT be found in the nucleus?
a)
DNA
b)
chromosomes
c)
chromatin
d)
mitochondria
24.
Which of the following traits CAN be inherited?
a)
A dog's silky hair
b)
A boy having long hair
c)
A cat that has its claws removed
d)
A girl with a sun tan
25.
Watson and Crick used this woman's work with X-ray images to create the idea of the DNA double helix.
a)
Gregor Mendel
b)
Rosalind Franklin
c)
Robert Hooke
d)
Martin Cooper
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