Genetic Variation

What is an example(s) of a genotype? (SELECT ALL THAT APPLY).

• Curly Hair

• GG

• Gg

• Straight Hair

Tags

NGSS.HS-LS3-1

What is an example(s) of a phenotype? (SELECT ALL THAT APPLY)

• Curly Hair

• GG

• Gg

• Straight Hair

Tags

NGSS.HS-LS3-1

Heterozygous is when...

• the alleles are the same
• the alleles are different
• the alleles are absent
• the alleles are present

Tags

NGSS.HS-LS3-2

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

• recessive
• dominant
• lower case letter
• both 

Which of the following is homozygous recessive?

• Tt
• tt
• TT
• T

Tags

NGSS.HS-LS3-1

condition in which both alleles for a gene are expressed when present - both traits are visible

• Codominance
• Dominance
• Complete dominance
• Incomplete dominance

Double eyelids are dominant (E) to normal eyelids (e). What is the genotype(s) for someone who has double eyelids?

• ee

• Ee, ee

• EE, Ee

• EE

Tags

NGSS.HS-LS3-1

Widows peak is recessive (w) to straight hair (W). What would be the corresponding phenotype for an individual who expresses the genotype (Ww).

• Widows Peak

• Straight

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

T - tall and t = short
In the punnett square below, what belongs in the missing square

• tt
• Tt
• Bb
• TT

Tags

NGSS.HS-LS3-1

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%

Tags

NGSS.HS-LS3-3