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What is the term used to describe homologous chromosomes exchanging genetic material during meiosis?(1 point)

Responses

trait distribution
trait distribution

crossing-over
crossing-over

self-pollination
self-pollination

frameshift mutation
frameshift mutation

When scientists analyzed the variations of color expressed in monkey flowers, what did they realize about the offspring of purple monkey flowers?(1 point)
Responses

The traits expressed did not result from changes in the genetic code.
The traits expressed did not result from changes in the genetic code.

The traits expressed did not result from environmental factors.
The traits expressed did not result from environmental factors.

The traits expressed did not result from changes in pollination.
The traits expressed did not result from changes in pollination.

The traits expressed did not result from frameshift mutations.
The traits expressed did not result from frameshift mutations.

Can sunlight change the distribution of traits in a population?(1 point)
Responses

No, because the environment can only change behaviors.
No, because the environment can only change behaviors.

No, because the environment can only change traits in individual organisms.
No, because the environment can only change traits in individual organisms.

Yes, because the environment is the only factor that can change traits.
Yes, because the environment is the only factor that can change traits.

Yes, because the environment can factor into the distribution of traits.

How did NASA help to distinguish genetic factors from environmental ones when studying the effects of living space?(1 point)
Responses

By introducing animals and other organisms that could be studied in space.
By introducing animals and other organisms that could be studied in space.

By running experiments on astronauts that were in space for over a year.
By running experiments on astronauts that were in space for over a year.

By analyzing changes in one twin on Earth and the other in space.
By analyzing changes in one twin on Earth and the other in space.

By observing changes in retired astronauts over a period of ten years.

One way scientists can analyze and interpret data to identify potential environmental factors is by (1 point)
Responses

determining how traits are expressed in an organism.
determining how traits are expressed in an organism.

studying how genes are organized in DNA of one organism.
studying how genes are organized in DNA of one organism.

confirming that a trait is always expressed in an organism.
confirming that a trait is always expressed in an organism.

analyzing the distribution or variation in traits across a population.

1 answer

Here are the answers to the questions based on the provided options:

  1. What is the term used to describe homologous chromosomes exchanging genetic material during meiosis?

    • crossing-over

  2. When scientists analyzed the variations of color expressed in monkey flowers, what did they realize about the offspring of purple monkey flowers?

    • The traits expressed did not result from changes in the genetic code. (This response is generally the most relevant based on the context provided.)

  3. Can sunlight change the distribution of traits in a population?

    • Yes, because the environment can factor into the distribution of traits.

  4. How did NASA help to distinguish genetic factors from environmental ones when studying the effects of living space?

    • By analyzing changes in one twin on Earth and the other in space.

  5. One way scientists can analyze and interpret data to identify potential environmental factors is by:

    • analyzing the distribution or variation in traits across a population.

I hope this helps! Let me know if you need further information.