Chapter 7 Vocab

Question 1

What does the principle of segregation state?

Answer 1

The principle of segregation states that each individual diploid organism possesses two alleles that separate in meiosis, with one allele going into each gamete.

Question 2

What does the principle of independent assortment state?

Answer 2

The principle of independent assortment provides additional information: that two alleles separate independently of alleles at other loci.

Question 3

What is recombination?

Answer 3

the sorting of alleles into new combinations.

Question 4

What does the independent separation of alleles result in?

Answer 4

The independent separation of alleles results in recombination, the sorting of alleles into new combinations.

Question 5

When does recombination occur?

Answer 5

Recombination has occurred if the genotypes of a gametes are different than the input haploid genotypes.

Question 6

What statements are true regarding recombination?
• Recombination fuels genetic diversity and along with mutation provides the molecular foundation of evolution
• Crossing-over is critical for many normal cell processes such as DNA repair and chromosome segregation
• Several human diseases are related to defects in recombination

Answer 6

All
• Recombination fuels genetic diversity and along with mutation provides the molecular foundation of evolution
• Crossing-over is critical for many normal cell processes such as DNA repair and chromosome segregation
• Several human diseases are related to defects in recombination

Question 7

Non recombinant means?

Answer 7

Gametes with only big or only small alleles in this example are called nonrecombinant (or parental).

Question 8

Recombinant means?

Answer 8

Gametes with both big and small alleles in this example are called recombinant.

Question 9

What does Mendel’s Principle of Independent Assortment state?

Answer 9

Mendel’s principle of independent assortment states that two traits assort independently during meiosis