2024 Bio Unit 2: Q1 DNA, Rep, Trans, and Trans

The two strands of a DNA molecule are held together by ________ bonds between their base pairs.

• covalent
• hydrogen
• ionic
• peptide

Which of the following is not a base found in DNA?

• adenine
• thymine
• cytosine
• uracil

If a segment of double-stranded DNA has 40 percent A, how much of it is C?

• 40
• 10
• 15
• 20

If one strand of DNA has the sequence TTACCG, the sequence of the other strand of the same molecule will be

• AATGGC
• TTACCG
• AACGGC
• AATGGG

Which enzyme copies DNA?

• DNA polymerase
• DNA helicase
• RNA polymerase
• RNA helicase

What does mRNA do?

• provides information from DNA to ribosomes
• transfers amino acids to the ribosomes
• makes up ribosomes
• builds proteins

What does rRNA do?

• provides information from DNA to ribosomes
• transfers amino acids to the ribosomes
• makes up ribosomes
• builds proteins

What does tRNA do?

• provides information from DNA to ribosomes
• transfers amino acids to the ribosomes
• makes up ribosomes
• builds proteins

What is the process that copies information from DNA into RNA?

• protein synthesis
• transcription
• translation
• DNA Polymerase

If a strand of DNA had bases in the following order - ATCCGTC, what would be the replicated complementary strand?

• UAGGCAG

• ATCCGTC

• TAGGCAG

• TUGGCTG

Tags

NGSS.HS-LS3-2