Humans have thousands of genes that combine in different ways to help create unique individuals. Where is the genetic code primarily located?

• Ribose sugars in RNA

• Phosphates in DNA

• Nucleotides in DNA

• Exons in RNA

Albumin is a protein that is secreted by liver cells and transported to the bloodstream. What factor most directly determines the amino acids that are combined to create albumin?

• The temperature of the cell when translation is taking place

• The number of chromosomes in a cell

• The sequence of nucleotides in DNA

• The amount of energy that is available in the cell

Tags

NGSS.HS-LS1-1

The base sequence of a segment of DNA is shown. Which base sequence correctly completes DNA Strand 2?

• A T A C G T

• G C G T A C

• C G C A T G

• T A T G C A

What components make up the backbone of a DNA molecule?

• Purines and deoxyribose

• Pyrimidines and purines

• Deoxyribose and phosphate groups

• Phosphate groups and pyrimidines

A segment of DNA is shown in the diagram. Which of these identifies the part of the DNA segment labeled X?

• Nucleotide

• Phosphate group

• Hydrogen bond

• Deoxyribose

Tags

NGSS.HS-LS1-1

In Texas Longhorn cattle, coat coloration is an inherited trait. What is the genetic basis of coat-color variation in Texas Longhorn cattle?

• Differences in the nucleotide sequences of genes

• Differences in the numbers of chromosomes in cells

• Differences in the diets of individual cattle

• Differences in the environmental conditions of different geographic areas

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Eight components present in nucleic acids are listed in the box. Which components bond with adenine in a section of double-stranded DNA?

• A 1, 3, 5, and 6 only

• B 3 and 5 only

• C 2 and 4 only

• D 3, 4, 7, and 8 only

A segment of a DNA strand is shown. 3’ AGGTCAAGGT 5’ Which of these is the correct complementary DNA strand for the segment shown?

• 5’ AGGTCAGGT 3’

• 5’ ACCUGAGGU 3’

• 5’ TGGCAGTCA 3’

• 5’ TCCAGTCCA 3’

An mRNA sequence and an mRNA codon chart are shown. mRNA Sequence: 5' UGC UAC AGA ACC 3' What is the amino acid sequence that will be translated from the mRNA sequence?

• Threonine - Isoleucine - Serine - Tryptophan

• Cysteine - Tyrosine - Arginine - Threonine

• Serine - Methionine - Tyrosine - Tryptophan

• Proline - Arginine - Histidine - Arginine

Tags

NGSS.HS-LS1-1

A diagram of the steps in the production of a protein is shown. Which description identifies the purpose of Step A in this process?

• To correct mutations in the DNA sequence

• To produce an exact copy of the DNA molecule

• To copy the DNA of a gene sequence onto a strand of mRNA

• To assist in the folding of a protein

Tags

NGSS.HS-LS1-1