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closeAP HW, nat sel, antibiotic 2.27.25

Total questions: 11

Worksheet time: 17mins

Name
Class
Date
1.

The rate that bacteria develop antibiotic resistance at can be sped up by:

a)

Exposure to lower levels of antimicrobials than prescribed

b)

2.Exposure to broad-spectrum antibiotics (which aren’t specific to a microbe)

c)

3.Overuse of antibiotics in foods/agriculture

d)

4. All of the above

2.

What can we do to reduce the rate of development of antibiotic resistant strains of bacteria

a)

Always finish a course of antibiotics

b)

Only take antibiotics when they are really needed

c)

Take antibiotics whenever it is possible

d)

Reduce the amount of antibiotics given to animals in the farming industry

3.

Which Hardy-Weinberg factor represents the frequency of heterozygous individuals in a population?

a)

p2

b)

2pq

c)

q2

d)

p2 + 2pq

4.
What does the Hardy-Weinberg equilibrium measure?
a)
changes in allele frequencies
b)
numbers of mutations
c)
goodness of fit
d)
genetic diversity
5.
A population of 150 individuals has an allele frequency of 0.3 for the dominant allele (B) and a frequency of 0.7 for the recessive allele (b). Use the Hardy-Weinberg equation to determine the frequency of the genotype (bb).
a)
0.09
b)
0.42
c)
0.49
d)
0.21
6.

Why are advantageous traits more likely to be passed onto offspring?

a)

Because they are more likely to survive and reproduce.

b)

Because they come from dominant alleles.

c)

Because they come from recessive alleles.

d)

Because the organism knew it needed that trait, survives, and passes it on.

7.

Which best describes the role of mutations in natural selection?

a)

Mutations help an organism to better survive in their environment

b)

An organism may acquire a helpful mutation by interacting with the environment

c)

A mutation may result in a beneficial trait that makes an organism more likely to survive and reproduce

d)

Organisms with certain traits are more likely to win competitions for mutations

8.
Why do frogs and other organism reproduce so many eggs or offspring?
a)
so that their babies can have friends to play with
b)
the more offspring the more likely the offspring will survive
c)
the more offspring the less likely offspring will survive 
d)
the more offspring the less competition
9.
Evolution works by 
a)
individuals changing to suit their environment
b)
Individuals learned new traits and pass them on
c)
sudden change in the environment cause a species change 
d)
small changes pass down through many generations
10.
Lamarck’s ideas about evolution include the concept that differences among the traits of organisms arise as a result of
a)
continual increases in population size.
b)
the actions of organisms as they use or fail to use body structures.
c)
an unchanging local environment.
d)
the natural variations already present within the population of organisms.
11.

What questions do you have?

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