Genetics Review

What macromolecule stores the genetic information?

• Nucleic acids

• Proteins

• Carbohydrates

• Lipids

Tags

NGSS.HS-LS3-1

What is the monomer of nucleic acids?

• nucleotides

• amino acids

• monosaccharides

• fatty acids

In peas, tall (T) is dominant to short (t). If two heterozygous peas are crossed, ​ (a)   of the offspring are expected to be tall, and ​ (b)   are expected to be short.

• 75%
• 25%
• 100%
• 50%
• 0%

Match the following terms to their definitions:

• Phenotype

• The physical appearance or traits of an organism

• Genotype

• The alleles or genes of an organism

• Homozygous

• Two alleles that are different (Aa)

• Heterozygous

• Two alleles that are the same (AA)

​ (a)   studied peas. He found that when he crossed "true-breeding" yellow peas with "true-breeding" green peas the offspring were all yellow. This occured because yellow is ​ (b)   to green.

• Gregor Mendel
• dominant
• Rosalind Franklin
• recessive

Which of the following describes Mendelian inheritance?

• Two traits create a third blended trait

• Two traits appear simultaneously

• Traits are linked on the X chromosome

• One trait overpowers the other
  

In dogs, pointy ears (P) are dominant to floppy (p). If two heterozygous dogs have puppies, ​ (a)   are expected to have pointy ears and ​ (b)   are expected to have floppy ears.

• 75%
• 25%
• 0%
• 50%
• 100%

Tags

NGSS.HS-LS3-3

Fill out the Punnett Square for two heterozygous parents.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Match the following types of inheritance to their examples.

• Incomplete dominance

• Red-green colorblindness is more common in biological males

• Codominance

• Goldfish can be white, orange, or white & orange spots

• Dominant

• Albinism can be hidden and skip generations

• Recessive

• Huntington's disease can be inherited with just one allele from one parent

• Sex-linked

• In snapdragons, red and white flowers have pink offpsring

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following describes incomplete dominance?

• Two traits create a third blended trait

• Two traits appear simultaneously

• One trait overpowers the other

• Traits are linked on the X-chromosome