Practice Genetics Test

What is a gene?

• An entire chromosome that  codes for a trait
• a piece of clothing
• a piece of a DNA on chromosome that codes for a trait
• Chemical messengers in your brain that code for a trait

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is heterozygous

• Ww
• ii
• DD
• kk

Tags

NGSS.HS-LS3-1

Which of the following is homozygous recessive?

• rr
• AA
• TT
• Ff

Tags

NGSS.HS-LS3-1

Which of the following is homozygous dominant?

• Jj
• Rr
• MM
• ee

Tags

NGSS.HS-LS3-1

The physical appearance of a trait is known as the-

• genotype
• phenotype
• characteristics
• intelligence

How many letters does a genotype contain?

• 1
• 2
• 3
• 4

Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype?

• Brown Hair
• Blonde Hair
• Brown and Blonde Hair
• Black Hair

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

T - tall and t = shortIn the punnett square below, what belongs in the missing square (a)  

• tt
• Tt
• TT

Tags

NGSS.HS-LS3-1

Version/variant of a gene

• Allele
• Trait
• Genotype
• Phenotype

Combination of alleles that an individual has for a certain gene (BB, Bb, bb)

• Genotype
• Phenotype
• Chromosome
• Trait

Tags

NGSS.HS-LS3-1