Gene Linkage & Polyploidy

Which formula do we use to calculate the number of possible genetic combinations due to independent assortment?

•  $2n$  
  

•  $n2$  
  

•   $2^n$  
  

•  $n^2$  

A peanut plant has 40 chromosomes. What is its n number?

• 10

• 20

• 30

• 40

A cat has 19 pairs of chromosomes. What is its n number?

• 10

• 19

• 38

• 46

Calculate the number of possible genetic combinations due to independent assortment of a spider with 22 chromosomes.

• 2048

• 44

• 4,194,304

• 11

Which genes in this picture are linked?

• A and C

• B and C

• A and B

• none of them

Tags

NGSS.HS-LS3-1

What process does this show?

• independent assortment

• polyploidy

• chromosome map

• crossing over

Which chromosomes do crossing over?

• homologous chromosomes

• heterogenous chromosomes

• linked chromosomes

• all chromosomes

Which 2 processes create unique gametes?

• crossing over

• polyploidy

• independent assortment

• mapping

Which genes will have the greatest chance of being separated during crossing over?

• B and C

• A and B

• C and D

• D and A

Tags

NGSS.HS-LS3-2

Which of these organisms shows polyploidy? (may be more than one answer)

• n

• 2n

• 3n

• 4n