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Genetic Variation

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

The variety of genes and alleles that exist in organisms

a)

independent assortment

b)

chromosomal abnormalities

c)

genetic diversity

d)

mutations

2.

Any change in the sequence of DNA is a

a)

recombination

b)

mutation

c)

chromatin

d)

independent assortment

3.
Traits that help an organism survive are called....
a)
evolution
b)
natural selection
c)
adaptations
d)
habitats
4.
Which of the following is an example of a physical trait , or structural adaptation?
a)
a long neck of a giraffe
b)
building a nest
c)
regulation of body functions
d)
production of a toxic substance
5.
An organism that survives longer is more likely to produce_______offspring
a)
less
b)
the same amount
c)
more
d)
no
6.
Most adaptations that help an organism survive are passed on from parent to child as ___traits?
a)
adaptable
b)
physical
c)
more
d)
inherited
7.
The ability to recognize a predator is an example of a ______adaptation?
a)
behavioral
b)
structural
c)
physiological
8.
Which is an example of an organism protecting themselves from another organism __?
a)
white color in the snow
b)
hibernation during winter
c)
thick fur in the winter time
9.
Differences that exist naturally among members of a population or species___?
a)
mutation
b)
adaptation
c)
variations
d)
evolution
10.
Almost all populations have some variation.
a)
true
b)
false
11.
Species with ______variation are ______likely to survive.
a)
more, less
b)
less,less
c)
less,more
d)
more,more
12.

__________________ is when human breed plants or animals to get specific traits. ex. Dogs

a)

artificial selection

b)

natural selection

c)

biological selection

13.

_______________ is a form of an inherited characteristic. Ex. The shape of a chicken’s comb is an inherited trait.

a)

trait

b)

stimulus

c)

response

14.

Which is a group of organisms with similar characteristics and are able to interbreed to produce offspring

a)

Variation

b)

Species

c)

Fitness

d)

Gene

15.

The probability of an organism surviving and reproducing

a)

Variation

b)

Species

c)

Fitness

d)

Gene

16.

A length of DNA that codes for a specific characteristic

a)

Variation

b)

Species

c)

Fitness

d)

Gene

17.

Differences in DNA between individuals or populations

a)

Environmental Variation

b)

Genetic Variation

c)

Adaptive Feature

d)

Genetic Engineering

18.

Differences in DNA as a result of environmental factors

a)

Environmental Variation

b)

Genetic Variation

c)

Adaptive Feature

d)

Genetic Engineering

19.

Taking a gene from one species and putting it in another

a)

Environmental Variation

b)

Genetic Variation

c)

Adaptive Feature

d)

Genetic Engineering

20.

Process of humans breeding animals or plants with desired traits

a)

Environmental Variation

b)

Selective Breeding

c)

Adaptive Feature

d)

Genetic Engineering

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