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WorksheetsGenetics
Total questions: 40
Worksheet time: 30mins
Name
Class
Date
1.
The passing of traits from parent to offspring
a)
Heredity
b)
Genetics
c)
Hybrid
d)
Probability
2.
Who was the father of genetics
a)
Sagan
b)
Issac Newton
c)
Gregor Mendel
d)
C.jenkins
3.
which is heterozygous ?
a)
Tt
b)
TT
4.
Which is homozygous ?
a)
Zz
b)
SS
5.
the genetic makeup of an organism
a)
heterozygous
b)
punnet square
c)
genotype
6.
what predicts the outcome
a)
genetic engineering
b)
punnet square
c)
probability
7.
Squidward has light blue skin, and his genotype for this trait is Bb. Would Squidward be considered a purebred or hybrid for light blue skin?
a)
Purebred
b)
Hybrid
8.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
9.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
10.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
11.
having two of the same genes for the trait (sometimes called purebred).
a)
homozygous
b)
hetrozygous
c)
protein
d)
chromosome
12.
having two different genes for a trait (sometimes called hybrid).
a)
protein
b)
homozygous
c)
heterozygous
d)
genotype
13.
Magda is a tall, 11 year old drummer. She has a scar on her right cheek. She is good at swimming. Which of her traits did Magda most likely inherit?
a)
height
b)
the scar
c)
ability to swim
d)
ability to play drums
14.
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%
15.
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
16.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
17.
Two heterozygous (Tt) tall pea plants are crossed. Which describes their offspring?
a)
50% tall and 50% short
b)
75%tall and 25% short
c)
100%short
18.
A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?
a)
100% BB
b)
75% BB and 25%Bb
c)
50 % BB and 50% Bb
d)
50% Bb and 50% bb
19.
A corn plant heterozygous for tall sprouts mates with a corn plant with short sprouts. If tall sprouts are dominant, how many different phenotypes are possible in the offspring?
a)
1
b)
2
c)
3
d)
4
20.
What is one advantage of sexual reproduction?
a)
offspring are identical to parents
b)
offspring are resistant to viruses
c)
offspring are born live, rather thna from eggs
d)
offspring inherit a wider variety of genetic information
21.
One form of a gene is called_______________
a)
a DNA
b)
a Phenotype
c)
a trait
d)
an allele
22.
Where, in the eukaryotic cell, is DNA located?
a)
ribosomes
b)
nucleus
c)
E.R.
d)
cytoplasm
23.
Which of the following will only show if two alleles are present?
a)
a dominant trait
b)
a recessive trait
24.
In this punnett square, which is the dominant trait?
The B stands for bud.
The B stands for bud.
a)
purple flower bud
b)
white flower bud
c)
dominant
d)
recessive
25.
A human usually has _____ total chromosomes.
a)
6
b)
22
c)
4
d)
46
26.
Half of these come from one parent and half come from the other parent.
a)
DNA
b)
genes
c)
chromosomes
d)
nucleus
27.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
28.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
29.
Alleles
a)
two forms of a gene (dominate and recessive)
b)
a gene combination
c)
a physical feature
d)
a gene that shows up less often
30.
All of the offspring of an organism have the same genetic material, which is identical to the parent organism. From this, we can conclude that this organism -
a)
makes its own food
b)
is unicellular
c)
live in a marine habitat
d)
reproduces asexually
31.
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
32.
What are the two genotypes that show the DOMINANT Phenotype
a)
GG, gg
b)
GG, Gg
c)
Gg, gg
33.
Which characteristic would a child not inherit from one or both of its parents?
a)
freckles
b)
hair style
c)
eye color
d)
dimples
34.
Put in order smallest to largest:
a)
Chromosome - DNA - Gene
b)
Gene - DNA - Chromosome
c)
DNA - Gene Chromosome
d)
Chromosome - Gene - DNA
35.
Which is true about DNA?
a)
Only animals have DNA in their cells
b)
DNA research is simple and quick
c)
DNA contains many genes
d)
None of the above are true.
36.
Which statement is true?
a)
Your DNA is the same as your siblings.
b)
Your set of DNA is identical to your mothers.
c)
Your set of DNA is identical to your fathers.
d)
Your DNA is unique to you.
37.
Why are your chromosomes arranged in pairs?
a)
Scientists have no idea
b)
Because you get one from your mom and one from your dad
c)
Because pairs can divide easier
d)
Because DNA is awesome
38.
How many pairs of chromosomes exist in each of your cells?
a)
10
b)
12
c)
23
d)
46
39.
T - tall and t = short
In the punnett square below, what belongs in the missing square
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
40.
Which is the correct phenotype for this organism?
a)
BB
b)
blue
c)
green
d)
bb
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