FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 16: The Molecular Basis of Inheritance

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 31

Multiple Choice

Review LaterAdd Note

Review Later

In analyzing the number of different bases in a DNA sample, which result would be consistent with the base-pairing rules?

A) A = G
B) A + G = C + T
C) A + T = G + C
D) A = C

E) C) and D)
F) B) and C)

Correct Answer

verified

Show Answer

Question 32

Multiple Choice

Review LaterAdd Note

Review Later

What is the function of the enzyme topoisomerase in DNA replication?

A) relieving strain in the DNA ahead of the replication fork caused by the untwisting of the double helix
B) elongating new DNA at a replication fork by adding nucleotides to the existing chain
C) reattaching the hydrogen bonds between the base pairs in the double helix
D) building RNA primers using the parental DNA strand as a template

E) A) and B)
F) B) and D)

Correct Answer

verified

Show Answer

Question 33

Multiple Choice

Review LaterAdd Note

Suppose you are provided with an actively dividing culture of E. coli bacteria to which radioactive thymine has been added. What would happen if a cell replicates once in the presence of this radioactive base?

Which of the following statements accurately describes the differences between DNA replication in prokaryotes and DNA replication in eukaryotes?

Use the figure to answer the following question. Single strand as a template plus $3 ^ { \prime }$ end to start DNA synthesis Referring to the figure, what bases will be added to the primer as DNA replication proceeds?

In DNA replication, the resulting daughter molecules contain one strand of the original parental DNA and one new strand. What is the explanation for this phenomenon?

Who performed classic experiments that supported the semiconservative model of DNA replication?

What is meant by the description "antiparallel" regarding the two strands that make up the DNA double helix?

What is the role of DNA ligase in the elongation of the lagging strand during DNA replication?

How does the enzyme telomerase meet the challenge of replicating the ends of linear chromosomes?

After the first replication was observed in their experiments testing the nature of DNA replication, Meselson and Stahl could be confident of which of the following conclusions?

The elongation of the leading strand during DNA synthesis

A biochemist isolates, purifies, and combines in a test tube a variety of molecules needed for DNA replication. When she adds some DNA to the mixture, replication occurs, but each DNA molecule consists of a normal strand paired with numerous segments of DNA a few hundred nucleotides long. What has she probably left out of the mixture?

Which of the following statements describes the process of transformation in bacteria?

Which of the following facts did Hershey and Chase make use of in trying to determine whether DNA or protein is the genetic material?

If a cell were unable to produce histone proteins, which of the following results would be a likely effect on the cell?

In an analysis of the nucleotide composition of a molecule of DNA, which of the following combinations of base pairs will be found?

Hershey and Chase set out to determine what molecule served as the unit of inheritance. They completed a series of experiments in which E. coli was infected by a T2 virus. Which molecular component of the T2 virus actually ended up inside the cell?

At a specific area of a chromosome, the sequence of nucleotides below is present where the chain opens to form a replication fork: 3' C C T A G G C T G C A A T C C 5' An RNA primer is formed starting at the underlined T (T) of the template. Which of the following represents the primer sequence?

Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight, and mutations to the DNA in their skin cells are left uncorrected. Why are the mutations not corrected in individuals with this disorder?