Genetics and Evolution

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

Which of the following genotypes is homozygous dominant?

• A
• Aa
• AA
• aa

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

In a flowering plant species, red flower color (R) is dominant over white flower color (r). What is the genotype of any red-flowering plant resulting from this species?

• rr
• R
• RR
• RR or Rr

Which of the characteristics is a lion least likely to pass on to its offspring?

• fur color
• length of tail
• scars on leg
• body size

What you see, or the physical appearance.

• Genotype
• Phenotype
• Homozygous
• Heterozygous

B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 

• 0%
• 25%
• 50%
• 75%

In plants, tall (T) is dominant to short (t). Perform the following cross: Tt x Tt. What is the probability of producing a short plant?

• 0%
• 25%
• 50%
• 75%

Who is considered the "father of genetics"?

• Gregor Mendel
• Reginald Punnett
• James Watson
• Justin Bieber

An allele whose trait always shows up in the organism when the allele is present.

• recessive allele
• dominant allele
• hidden allele
• present allele