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BrainPop - DNA

Last updated over 3 years ago

10 Nsɛmmisa

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Asemmisa {{asɛmmisaAhyɛnsode}}

1.

Inherited traits are:

Dependent on diet

Acquired during an organism’s life

Free of mutations

Passed on from parent to offspring

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

The average size of a grocery store chicken has more than doubled in the past century. What is the most likely reason for this change?

Natural selection resulted in a larger species of chicken

Artificial selection created a larger breed of chicken

Mutations occur less frequently in chickens than they did a century ago

Grocery stores used to sell younger chickens

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

Gregor Mendel observed that pea plant traits did not blend in their offspring. This led him to conclude that:

Traits are inherited in separate units

Offspring inherit genes from only one parent

Pea plants do not have genes

Traits are not inherited

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Every cell in an organism has the same number of chromosomes, except:

Skin cells

Neurons

White blood cells

Reproductive cells

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

Genes are segments of DNA in a chromosome. A gene carries the

Are each associated with a particular sound

Can be used in a variety of languages

Each have an uppercase and a lowercase form

Spell out different instructions depending on their order

Asemmisa {{asɛmmisaAhyɛnsode}}

7.

Genes influence an organism’s traits by coding for harmful.

Asemmisa {{asɛmmisaAhyɛnsode}}

9.

How do mutations affect natural selection?

They slow down the process

They prevent organisms from evolving

They affect how likely an organism is to survive and reproduce

They are the leading cause of extinction

Asemmisa {{asɛmmisaAhyɛnsode}}

10.

How is editing the genetic code different from artificial selection?

It enables humans to influence the inheritance of DNA

It enables humans to directly change DNA

It can only be used on animal DNA

It is not yet possible to edit the genetic code