Honors Biology Final Exam Spring

a __________ is a segment of DNA that codes for a protein

• gene

• allele

• histone

• helix

Tags

NGSS.HS-LS1-1

Why do offspring typically resemble their parents (if produced through sexual reproduction)?

• nucleic acids that contain information about the parental traits are inherited and expressed in the offspring

• proteins that contain information about the parental traits are inherited and expressed in the offspring

• parents and offspring always develop in a similar environment, so the environment selects the same traits in each

• the mother's uterus is the same for each offspring, so they will have the same genes expressed

Tags

NGSS.HS-LS3-1

In simple (Mendelian) inheritance...The genotype "Tt" would have the ____________ phenotype expressed.

• recessive

• dominant

• blend/mix of the two parents

• maternal

_____________ cells contain 23 chromosomes in humans and _____________ cells contain 46 chromosomes.

• gamete, somatic

• somatic, gamete

• mitosis, meiosis

• nondisjunction, normal

Tags

NGSS.HS-LS3-2

If a colorblind female plans on having a child with a male with normal color vision...what is the % chance that their first SON would be colorblind?

• 100%

• 50%

• 75%

• 25%

• 0%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Mendel's Law of Segregation states that

• the two alleles that make up a parent's genotype will be separated from each other during gamete formation

• traits will be inherited independently from each other

• the gametes produced will be identical to the mother's somatic cells

• the gametes produced will be identical to the father's somatic cells

Tags

NGSS.HS-LS3-2

Edgar is trying to determine the genotype of his black cat. He breeds it with a gray cat (homozygous) and finds that 50% of the kittens are gray and 50% of them are black. What must the genotype of his black cat be? (simple dominance and the only two fur options are black or gray here)

• Aa

• aa

• AA

• impossible to tell

Tags

NGSS.HS-LS3-1

Widow's peak is dominant to a straight hairline. If a heterozygous man has 8 kids with a woman with a straight hairline...which of the following statements is accurate?

• exactly 4 of their kids will have a widow's peak and 4 will have a straight hairline

• each child will have a 25% chance of having a widow's peak

• each child will have a 50% chance of having a widow's peak

• exactly 6 of their kids will have a widow's peak and 2 will have a straight hairline

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Match the scientist(s) to their contribution...

____________ = Genetics

____________ = Evolution

• Gergor Mendel, Charles Darwin/Alfred Russel Wallace

• Charles Darwin, Gregor Mendel

• James Watson, Francis Crick/Rosalind Franklin

• Jean Baptist Lamarck, Gregor Mendel

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

What must the genotype of person I-2 be?

• X^HX^h

• X^HX^H

• X^hX^h

• X^HY^h

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2