Biology EOC Practice 5

Which would be affected first by a change in a DNA nucleotide sequence?

• the mRNA transcribed from the DNA

• the function of a protein coded for by the DNA

• the order of amino acids coded for by the DNA

• the substrate that binds to the protein coded for by the DNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Which correctly matches a strand of DNA with its complementary strand of RNA?

• DNA: TAC TAG

  RNA: ATG AUC

• DNA: ATA CCG

  RNA: UAU GGC

• DNA: CUG AUU

  RNA: GAC UAA

• DNA: TAA CGC

  RNA: ATT GGG

Which nucleic acid is correctly paired with its function?

• mRNA: lines up amino acids at the ribosome

• DNA: forms peptide bonds between amino acids

• tRNA: moves genetic information from the nucleus to the ribosome

• mRNA: moves genetic information from the nucleus to the ribosome

Tay-Sachs disease is a lethal, autosomal recessive genetic disorder. If both parents are heterozygous carriers of the disease, what are the chances of them having a child who is also a heterozygous carrier for Tay-Sachs?

• 25%

• 50%

• 75%

• 100%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A father without hemophilia has two daughters and two sons. Neither daughter has hemophilia. One son has hemophilia and the other does not. What is the genotype of the mother?

• X^HX^H

• X^HX^h

• X^HY

• X^hY

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following statements can be determined from the karyotype shown?

• it is a normal female

• it is a normal male

• it is a female with Down Syndrome

• it is a male with Down Syndrome

Tags

NGSS.HS-LS3-1

In the pedigree shown, which represents the genotype of individual I-2? (Hint: N is a normal allele)

• X^NY

• XⁿXⁿ

• XⁿY

• X^NXⁿ

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What amino acid sequence would be produced from the DNA sequence TAC CCC GCA AGT?

• Tyrosine - Proline - Alanine - Serine

• Methionine - Proline - Alanine - Serine

• Isoleucine - Glycine - Proline - Tyrosine

• Methionine - Glycine - Arginine - Serine

Tags

NGSS.HS-LS1-1

NGSS.HS-LS1-6

In guinea pigs, the allele for black fur (B) is dominant. The allele for brown fur (b) is recessive.

Two guinea pigs were crossed as shown in the Punnett Square. Which of these describes the phenotypes of the parent guinea pigs?

• Both parents have black fur.

• Both parents are homozygous.

• One parent has black fur and the other has brown fur.

• One parent is homozygous and the other is heterozygous.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A DNA strand contains codons, which consist of a sequence of three nucleotides. Which BEST describes the importance of codons found in the sequence of DNA?

• They contain the code for messenger RNA.

• They signal the start of mitotic cell division.

• They ensure proper replication of the genetic code.

• They are used to assemble amino acids for protein synthesis.

Tags

NGSS.HS-LS1-1