Q: Which of the following correctly describes the flow of genetic information in eukaryotic cells?

$$\text{DNA} \rightarrow \text{RNA} \rightarrow \text{Protein}$$

Question 1

Which of the following correctly describes the flow of genetic information in eukaryotic cells?

Accepted Answer

$$	ext{DNA} ightarrow 	ext{RNA} ightarrow 	ext{Protein}$$

Question 2

Which component is NOT part of a nucleotide found in DNA?

Accepted Answer

A ribose sugar

Question 3

What type of bond links nucleotides together in a polynucleotide chain?

Accepted Answer

Phosphodiester linkage

Question 4

Which of the following base pairs is found in DNA but NOT in RNA?

Accepted Answer

Adenine–Thymine

Question 5

A scientist analyzes the DNA of a newly discovered species and finds that 30% of its bases are adenine. According to Chargaff's rules, what percentage of the bases should be thymine?

Accepted Answer

$$30\%$$

Question 6

Which statement best explains why DNA can be replicated accurately?

Accepted Answer

Complementary base pairing ensures each strand can serve as a template.

Question 7

Which of the following is a purine base found in nucleic acids?

Accepted Answer

Adenine

Question 8

What is the difference between a nucleoside and a nucleotide?

Accepted Answer

A nucleotide contains a nitrogenous base, a sugar, and a phosphate group; a nucleoside contains only a base and a sugar.

Question 9

Which feature of the DNA double helix allows proteins to interact with specific sequences during transcription?

Accepted Answer

The major and minor grooves formed by the double helix

Question 10

If a DNA molecule has the following sequence on one strand: $$5'	ext{-ATCGGCTA-3'}$$, what is the complementary sequence on the other strand?

Accepted Answer

$$3'	ext{-TAGCCGAT-5'}$$

Question 11

Which of the following statements about RNA is TRUE?

Accepted Answer

RNA contains ribose as its sugar.

Question 12

Which process is directly responsible for converting the information in mRNA into a sequence of amino acids?

Accepted Answer

Translation

Question 13

Which of the following best describes the backbone of a DNA molecule?

Accepted Answer

Alternating sugars and phosphate groups

Question 14

A mutation changes a cytosine base to a thymine base in a DNA sequence. Which type of nitrogenous base change has occurred?

Accepted Answer

Pyrimidine to pyrimidine

Question 15

Which of the following is a direct application of genomics in medicine?

Accepted Answer

Sequencing the entire genome to find disease-causing mutations

Question 16

Which of the following is TRUE about the directionality of DNA strands in the double helix?

Accepted Answer

One strand runs 5' to 3', the other runs 3' to 5'

Question 17

Which of the following best describes a genome-wide association study (GWAS)?

Accepted Answer

A study identifying single nucleotide polymorphisms (SNPs) associated with disease

Question 18

Which of the following is a correct statement about complementary base pairing in DNA?

Accepted Answer

Adenine pairs with thymine, and guanine pairs with cytosine

Question 19

Which of the following is a pyrimidine base found in RNA but NOT in DNA?

Accepted Answer

Uracil

Question 20

A researcher is studying a short-finned pilot whale and wants to compare its genome to that of a hippopotamus. Which field of study is most relevant to this task?

Accepted Answer

Genomics

Chapter 5.2

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