Q2 Major Test

WHAT DOES MEIOSIS CREATE?

• CHROMOSOMES

• GAMETES

• DNA

• TRAITS

THE END RESULT OF MEIOSIS IS...

• FOUR UNIDENTICAL GAMETES

• FOUR IDENTICAL GAMETES

• TWO IDENTICAL GAMETES

• TWO UNIDENTICAL GAMETES

MALE GAMETE IS KNOWN AS

• EGG

• SPERM

HOW MANY CHROMOSOMES DO HUMAN GAMETES HAVE?

• 46

• 23

• 47

• 22

THIS IMAGE SHOWS WHAT IS HAPPENING WITH THE CHROMOSOMES?

• NON- DISJUNCTION

• METAPHASE

• TELOPHASE

• CROSSING OVER

Which trait is dominant?

• Brown hair

• Blonde hair

Cystic Fibrosis is a recessive trait. Which genotype(s) will not have cystic fibrosis? Pick two.

• CC

• Cc

• cc

Cystic Fibrosis is a recessive trait. What is the phenotype of Karen?

• Cystic fibrosis (affected)

• Normal (unaffected or carrier)

The shaded individuals have the recessive phenotype. Which cross represents individuals III 1 and III 2?

• TT x TT

• TT x Tt

• Tt x Tt

• Tt x tt

• tt x tt

What ratio of the offspring from the cross shown will be homozygous recessive for the  trait of tallness? 

• 0 in 4
• 1 in 4
• 2 in 4
• 4 in 4