Punnett Squares and Simple Human Inheritance

Nondisjunction causes human disorders through...

• altering the number of gametes
• altering the number of zygotes
• altering the chromosome number
• altering the chromosome structure

What part of the chromosome is involved with the process of preventing cancer and aging? 

• telomere
• aglet
• karyotype
• telophase

Which human condition is inherited as a dominant allele? 

• albinism
• cystic fibrosis
• Tay-Sachs
• Huntington's

What determines gender in humans? 

• The X & Y chromosome
• chromosome 21
• codominance
• multiple alleles

Which of these is heterozygous? 

• AA
• aa
• Aa

Which of these is homozygous dominant? 

• AA
• aa
• AB

Which of these is homozygous recessive? 

• AA
• aa
• AB

When a person has three copies of chromosome 21 it is called...

• trisomy 21
• monosomy 21
• Edwards Syndrome
• cyctic fibrosis

How many SEX chromosomes does a normal human have?

• 2

• 12

• 23

• 46

Long is dominant to short. If we cross two heterozygous longs, how many shorts will we have? 

• 0%
• 25%
• 50%
• 75%

Tags

NGSS.HS-LS3-1