WorksheetsOGMS Genetics Review 2
Total questions: 21
Worksheet time: 53mins
Name
Class
Date
1.
What does this letter represent?
a)
Dominant
b)
Recessive
c)
Purebred
d)
Hybrid
2.
What does this letter represent?
a)
Dominant
b)
Recessive
c)
Purebred
d)
Hybrid
3.
What is the dominant phenotype?
a)
BB
b)
Purple
c)
White
d)
Purple and White
4.
What percentage of the offspring are heterozygous (hybrid)?
a)
25%
b)
50%
c)
75%
d)
100%
5.
What percentage of the offspring are purebred recessive?
a)
25%
b)
50%
c)
75%
d)
100%
6.
What percentage of the offspring are purebred dominant?
a)
100%
b)
75%
c)
50%
d)
25%
7.
If B = purple and b = white, what is the phenotype of the purebred dominant plant?
a)
Purple
b)
White
c)
BB
d)
bb
8.
Select the appropriate genotype.
a)
green
b)
aa
9.
What percentage of offspring are purebred?
a)
100%
b)
75%
c)
50%
d)
25%
10.
These steps are called?
a)
base-pairs
b)
chromosome
c)
DNA
d)
Gene
11.
This structure X like is called a.....?
a)
Gene
b)
DNA
c)
Chromosome
d)
Nucleus
12.
The control center of a cell is called... (holds DNA)
a)
DNA
b)
Nucleus
c)
Gene
d)
Chromosome
13.
Structure that holds the nucleus and all DNA is called a?
a)
Cell
b)
Nucleus
c)
E.R.
d)
Ribosome
14.
A small section of the DNA which codes for a trait. This is called a.....?
a)
base pair
b)
cell
c)
chromosome
d)
gene
15.
The Father of Genetics is?
a)
Watson
b)
Mendel
c)
Galileo
d)
Einstein
16.
How many chromosomes do humans have?
a)
45
b)
46
c)
23
d)
47
17.
What's the probability of being purebred recessive?
a)
75%
b)
25%
c)
100%
d)
50%
18.
A change in the DNA is called a.....?
a)
correction
b)
mutation
c)
change
19.
Mutations can be.....?
a)
Good
b)
Bad
c)
Good or bad
d)
Good, Bad or Neither
20.
The study of genes is called.....
a)
life science
b)
biology
c)
genetics
d)
heredity
21.
The passing of traits to offspring is called....
a)
heredity
b)
genetics
c)
biology
d)
life science
100 %
