7th REVIEW

What allele combination should go in the missing box?

• AA
• Aa
• aa
• none of these

If B = brown hair and b = blonde hair, what is the probability of brown hair?

• 25%
• 50%
• 0%
• 75%

In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype?

• It is BB.
• It is Bb
• It is brown
• It is bb.

What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 

• 50 % Brown Hair and 50% Blond Hair 
• 25 % Brown Hair and 75% Blond Hair 
• 75 % Brown Hair and 25% Blond Hair 
• 0% Brown Hair and 100% Blond Hair 

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

What is the probability of heterozygous offspring?

• 25%
• 50%
• 0%
• 100%

What is the probability of homozygous dominant offspring?

• 0%
• 100%
• 50%
• 25%

What is the difference between sexual and asexual reproduction?

• Asexual produces genetically different offspring. Sexual produces genetically identical.

• Sexual produces offspring with fewer chromosomes. Asexual produces more.

• Sexual produces genetically different offspring. Asexual produces genetically identical.

• Sexual reproduction is quicker than asexual.

Involves only one parent

• Asexual Reproduction

• Sexual Reproduction

• Diverse

• Uniform

In certain species of plants, purple flowers (P) are dominant to white flowers (p). If two heterozygous plants are crossed, what will be the phenotype of the offspring?

• 100% purple flowers
• 100% white flowers
• 75% white flowers, 25% purple flowers
• 25% white flowers, 75% purple flowers