WorksheetsIntroduction to Genetics
Total questions: 20
Worksheet time: 32mins
Name
Class
Date
1.
Which statement best describes sexual reproduction?
a)
Cell division happens where one cell produces two exact copies
b)
Reproduction happens very quickly
c)
Only one parent needed
d)
Fertilization of an egg by a sperm
2.
Where does an off spring get its traits in asexual reproduction?
a)
From both parents
b)
From only one parent
c)
From neither parent
d)
There are no traits handed down
3.
What percentage of chromosomes are handed down by a sperm cell?
a)
75%
b)
25%
c)
50%
d)
100%
4.
If a organism divides into two new organisms what is this an example of?
a)
Asexual reproduction
b)
Sexual reproduction
c)
Cloning
d)
Budding
5.
Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents
a)
1,1
b)
2,2
c)
2,1
d)
1,2
6.
What is an advantage of asexual reproduction?
a)
Genetic diversity
b)
Takes two parents
c)
Takes a long time for to happen
d)
Takes very little time to happen
7.
What is an advantage of sexual reproduction?
a)
Allows genetic variation
b)
Only needs one parent
c)
Happens very quickly
d)
Offspring are exact copies of parent
8.
What is one disadvantage for asexual reproduction?
a)
Happens very quickly
b)
Only needs one parent
c)
Lack of genetic diversity
d)
All offspring are exact copies of parent
9.
What is one disadvantage of sexual reproduction?
a)
Only one parent needed
b)
Off spring are exact copies of parents
c)
Happens very quickly
d)
Needs two parents
10.
Which cellular process is shown?
a)
meiosis
b)
endocytosis
c)
mitosis
d)
phagocytosis
11.
How many times in meiosis does the cell divided?
a)
2
b)
4
c)
3
d)
1
12.
Which process creates genetically DIFFERENT offspring?
a)
sexual
b)
asexual
13.
When the egg and sperm cells unite, this is called...
a)
Fertilization
b)
Zygote
c)
Embryo
d)
Cell Differentiation
14.
What type of cells only contain 23 Chromosomes?
a)
Bone cells
b)
Skin cells
c)
Sex cells
d)
Liver cells
15.
What number of chromosomes are handed down by a egg cell?
a)
46
b)
12
c)
23
d)
96
16.
Haploid cells have how many chromosomes in humans?
a)
2
b)
23
c)
46
d)
64
17.
Diploid cells have how many chromosomes in humans?
a)
4
b)
23
c)
46
d)
64
18.
Sperm and egg cells are an example of what?
a)
gametes
b)
chromosomes
c)
meiosis
d)
stages
19.
When a sperm and egg cell meet they form?
a)
Zygote
b)
gamete
c)
daughter cell
d)
diploid
20.
What determines who you are and what you look like?
a)
genes
b)
cells
c)
haploid
d)
zygotes
100 %
