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WorksheetsGENETICS BIO. QUIZ 1
Total questions: 45
Worksheet time: 1hrs 16mins
Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
2.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
3.
A specific sequence of DNA nucleotides that codes for a specific protein is known as..
a)
A gene
b)
A nucleotide
c)
A polypeptide
d)
An allele
4.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
5.
traits that show up more often
a)
dominant
b)
recessive
6.
which is heterozygous ?
a)
Tt
b)
TT
7.
Which is homozygous ?
a)
Zz
b)
SS
8.
What is a phenotype
a)
The genetic make up (code)
b)
The physical trait
9.
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
10.
A heterozygous yellow pea plant's genotype would be:
a)
YY
b)
yy
c)
Yy
d)
Yg
11.
Who is called the "Father of Genetics"?
a)
Walter Sutton
b)
Albert Einstein
c)
Gregor Mendel
d)
Charles Darwin
12.
Genetics is the study of heredity.
a)
True
b)
False
13.
Offspring are the young of an animal or plant.
a)
False
b)
True
15.
What percentage of chromosomes are handed down by a sperm cell?
a)
75%
b)
25%
c)
50%
d)
100%
15.
What percentage of chromosomes are handed down by a sperm cell?
a)
75%
b)
25%
c)
50%
d)
100%
17.
What type of cells only contain 23 Chromosomes?
a)
Bone cells
b)
Skin cells
c)
Sex cells
d)
Liver cells
17.
What type of cells only contain 23 Chromosomes?
a)
Bone cells
b)
Skin cells
c)
Sex cells
d)
Liver cells
18.
What number of chromosomes are handed down by a egg cell?
a)
46
b)
12
c)
23
d)
96
19.
Haploid cells have how many chromosomes in humans?
a)
2
b)
23
c)
46
d)
64
20.
Diploid cells have how many chromosomes in humans?
a)
4
b)
23
c)
46
d)
64
21.
What determines who you are and what you look like?
a)
genes
b)
cells
c)
haploid
d)
zygotes
22.
What do these letters mean to a scientist: Aa?
a)
Homozygous dominant
b)
Homozygous recessive
c)
Two dominant alleles
d)
One dominant allele & one recessive allele
23.
My mom has dimples (dominant) and my dad does not (recessive). I have dimples, but my sister does not. How can this happen?
a)
I got all my genes from my mom.
b)
My sister got all her genes from my dad.
c)
My sister got both of her chromosomes from my dad.
d)
My sister and I got a different combination of alleles our dad and mom
26.
The passing of genes from parents to children is called
a)
heredity
b)
allele
c)
genotype
d)
traits
26.
The passing of genes from parents to children is called
a)
heredity
b)
allele
c)
genotype
d)
traits
26.
The passing of genes from parents to children is called
a)
heredity
b)
allele
c)
genotype
d)
traits
27.
What is genetics?
a)
The study of heredity.
b)
The unit of inheritance that carries instructions for traits.
c)
Structures in the nucleus that carry genes.
d)
Genetic materials that make up genes.
28.
What are genes?
a)
units that carry instructions for traits
b)
the study of heredity
c)
threadlike structures in the nucleus
d)
genetic material that makes up genes
29.
What are chromosomes?
a)
the study of heredity
b)
units of inheritance that carry instructions for traits
c)
genetic material that makes up genes
d)
threadlike structures in the nucleus that carry genes
30.
What is DNA?
a)
the study of heredity
b)
units of inheritance that carry instructions for traits
c)
threadlike structures in the nucleus
d)
genetic material that makes up genes
31.
What is an allele?
a)
version of a gene
b)
trait determined by many genes
c)
Dna sequence that determines a trait
32.
What is the meaning of homozygous?
a)
Combination of the same alleles
b)
Combination of different alleles
c)
Expressed with a single copy of the allele
d)
Requires two alleles to be expressed
33.
What is the meaning of heterozygous?
a)
Combination of the same alleles
b)
Combination of the different alleles
c)
Expressed with a single copy of the allele
d)
Requires two alleles to be expressed
34.
Define the term - Dominant allele.
a)
Combination of the same alleles
b)
Combination of different alleles
c)
Expressed with a single copy of the allele
d)
Requires two alleles to be expressed
35.
Define the term - Recessive allele.
a)
Combination of the same alleles
b)
Expressed with a single copy of the allele
c)
Combination of the different alleles
d)
Requires two alleles to be expressed
36.
Define genotype.
a)
Genetic make-up of a trait.
b)
Physical expression of a trait.
c)
Tool used to display potential probabilities for offspring.
d)
The amount of genes in a given population.
37.
Define phenotype.
a)
Genetic make-up of a trait.
b)
Physical expression of a trait.
c)
Tool used to display potential probabilities for offspring.
d)
The amount of genes in a given population.
38.
Dark hair and no dimples are the dominant forms of these traits. Jack's mom has dark hair and no dimples and his dad has blonde hair with dimples. Which traits are most likely for Jack?
a)
blonde hair and dimples
b)
dark hair and dimples
c)
dark hair and no dimples
d)
blonde hair and no dimples
39.
Brown eyes are dominant over blue. Sam has brown eyes. Is it likely that both of his parents have blue eyes?
a)
yes
b)
no
40.
Which genotype represents a recessive trait?
a)
AA
b)
Aa
c)
aa
41.
This image shows a...
a)
Punnett Square
b)
Phenotype
c)
Genotype
d)
Dominant allele
42.
Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
43.
Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
44.
How many individual chromosomes are there in the Human Genome?
a)
12
b)
48
c)
46
d)
23
45.
This gene is always expressed no matter what gene the other parent contributes.
a)
Dominant
b)
Recessive
c)
Gene
d)
Giant
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