WorksheetsCells & Heredity Review
Total questions: 16
Worksheet time: 8mins
Name
Class
Date
1.
Which term refers to the movement of materials through a cell membrane without using energy?
a)
passive transport
b)
collision
c)
active transport
d)
concentration
2.
How does natural selection lead to evolution?
a)
Overproduction provides food for stronger members of the species.
b)
Environmental changes kill weaker members of the species.
c)
Helpful traits accumulate among surviving members of the species.
d)
Stronger offspring kill weaker members of the species.
3.
Why are sex-linked traits more common in males than in females?
a)
A recessive allele on the X chromosome will always produce the trait in a male.
b)
All alleles on the Y chromosome are recessive.
c)
All alleles on the X chromosome are dominant.
d)
Any allele on the Y chromosome will be codominant with the matching allele on the X chromosome.
4.
If a homozygous black guinea pig (BB) is crossed with a homozygous white guinea pig (bb), what is the probability that an offspring will have black fur?
a)
25%
b)
50%
c)
75%
d)
100%
5.
What is the role of genes in evolution?
a)
Recessive genes are always a disadvantage.
b)
Only traits that are controlled by genes can be acted on by natural selection.
c)
Parents with recessive genes die from overproduction.
d)
The genes of most surviving parents have only dominant alleles.
6.
The effects of natural selection are generally seen most quickly in which organisms?
a)
bacteria
b)
corn plants
c)
humans
d)
cats
7.
What is the process occurring between E and F?
a)
fertilization
b)
cell division
c)
metamorphosis
d)
gamete production
8.
Factors that control traits are called
a)
recessives
b)
purebreds
c)
genes
d)
parents
9.
Chromosome is to nucleus as DNA is to
a)
cytoplasm
b)
gene
c)
cell membrane
d)
chloroplast
10.
What is this model used to determine?
a)
the rate of mutation
b)
the possibility of having twins
c)
the production of sex cells
d)
the probability of a trait being passed on
11.
A structure found in plant and bacterial cells but not in animal cells is a(n)
a)
vacuole
b)
cell wall
c)
cell membrane
d)
nucleus
12.
Why is water so important for a cell?
a)
Water is the main ingredient in DNA.
b)
Most chemical reactions in cells require water.
c)
Water is an essential organic compound for the body.
d)
All proteins require water to function.
13.
Which organelles produce most of the energy needed by a cell?
a)
ribosomes
b)
Golgi bodies
c)
cell membrane
d)
mitochondria
14.
In humans, a fertilized egg contains 46 chromosomes. Which bar graph best represents the number of chromosomes contained in the sperm and egg before they united to make the fertilized egg?
a)
1
b)
2
c)
3
d)
4
15.
The diagram shows the head structure of four different birds.The birds' beaks show how the birds
a)
store food for the winter months.
b)
compete for the same food in their community.
c)
require different amounts of food for survival.
d)
are adapted to get food from different sources.
16.
The gradual change in a species over time is called
a)
evolution
b)
variation
c)
mutation
d)
migration
100 %
