Biology Chapter 11 - Independent Assortment
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Questions and Answers

When does independent assortment occur?

Metaphase 1 of meiosis 1

Independent assortment occurs when the chromosomes ______ ____ several different ways.

line up

The way one pair of homologous chromosomes line up does not affect the way the other pair lines up.

True

The way each chromosome lines up is ________.

<p>random/independent</p> Signup and view all the answers

During meiosis, lined up on the left will go to different cells than the chromosomes lined up on the right.

<p>True</p> Signup and view all the answers

Independent assortment affects which _________ will end up in each new cell.

<p>alleles</p> Signup and view all the answers

Independent assortment can also happen in meiosis 2.

<p>True</p> Signup and view all the answers

Specifically, independent assortment happens in ____________ of meiosis 2.

<p>metaphase 2</p> Signup and view all the answers

Why won't independent assortment in metaphase 2 make any difference in the genes inherited by the gametes if the bottom chromosomes don't cross over?

<p>Because the sister chromatids of each of the bottom chromosomes are identical if they don't cross over.</p> Signup and view all the answers

How does independent assortment in Metaphase 2 help to produce different gametes?

<p>The sister chromatids of individual chromosomes line up randomly, resulting in a variety of possible genetic combinations in gametes.</p> Signup and view all the answers

Study Notes

Independent Assortment in Meiosis

  • Independent assortment occurs during metaphase 1 of meiosis 1.
  • Chromosomes line up in multiple different orientations, allowing for genetic variation.
  • The arrangement of one pair of homologous chromosomes does not influence how other pairs align, affirming that the process is random and independent.
  • Chromosomes' orientation during this phase can lead to diverse genetic combinations in offspring.
  • True: Chromosomes aligned on the left side of the metaphase plate will migrate to different cells than those on the right side.
  • Independent assortment plays a crucial role in determining which alleles will be present in each newly formed cell.
  • True: Independent assortment can also occur during meiosis 2.
  • Specifically, it happens during metaphase 2 of meiosis 2.
  • If the sister chromatids of lower chromosomes do not cross over, their genetic material remains identical; hence, independent assortment in this phase does not impact genetic inheritance.
  • Independent assortment in metaphase 2 facilitates the random lining up of sister chromatids, leading to an array of genetic variations in gametes.

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Description

Test your knowledge on the concept of independent assortment from Biology Chapter 11. This quiz includes key definitions and true/false statements related to chromosome behavior during meiosis. Perfect for reinforcing your understanding of genetic variation.

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