Question 1

At what approximate wavelengths do DNA, RNA, and proteins maximally absorb light?

Accepted Answer

260 nm, 26

Question 2

Given the structure below, please answer the following questions. Is the accompanying figure DNA or RNA? ________ Is the arrow closest to the 5' or 3' end? ________ Spleen diesterase is an enzyme that breaks the covalent bond that connects the phosphate to the 5' carbon. Assume that the dinucleotide is digested with spleen diesterase. To which base and to which carbon on the sugar is the phosphate now attached, A or T?

Accepted Answer

A)  RNA; 3' end; A, 3' 
B)  DNA; 5' end; A, 5' 
C)  RNA; 3' end; T, 3' 
D)  DNA; 3' end; A, 3' 
E)  DNA; 3' end; T, 5' 
A)  RNA; 3' end; A, 3' 
B)  DNA; 5' end; A, 5' 
C)  RNA; 3' end; T, 3' 
D)  DNA; 3' end; A, 3' 
E)  DNA; 3' end; T, 5'

Question 3

Suppose that the dinucleotide in the accompanying figure were cleaved with the
enzyme spleen diesterase, which breaks the covalent bond connecting the phosphate to C -5'. After such cleavage, to which nucleoside is the phosphate now attached?

Accepted Answer

The answer of Suppose that the dinucleotide in the accompanying...

Question 4

Is the accompanying figure DNA or RNA? Is the circle closer to the 5' or 3' end?

Accepted Answer

The answer of Is the accompanying figure DNA or RNA?...

Question 5

In 1953, Watson and Crick published a paper that described the structure of DNA.

Accepted Answer

A) True 
 B)False

Question 6

All other factors being equal, the renaturation of the three classes of complementary nucleic acid sequences occurs in what order, from fastest to slowest?

Accepted Answer

highly repetitive, m

Question 7

If 15 percent of the nitrogenous bases in a sample of DNA from a particular organism is thymine, what percentage should be cytosine?

Accepted Answer

A)  40 percent 
B)  35 percent 
C)  70 percent 
D)  30 percent 
E)  15 percent 
A)  40 percent 
B)  35 percent 
C)  70 percent 
D)  30 percent 
E)  15 percent

Question 8

In RNA, uracil is present instead of the thymine in DNA.

Accepted Answer

A) True 
 B)False

Question 9

Describe four major functions of DNA in a cell.

Accepted Answer

replication = duplication of g

At what approximate wavelengths do DNA, RNA, and proteins maximally absorb light?

Suppose that the dinucleotide in the accompanying figure were cleaved with the enzyme spleen diesterase, which breaks the covalent bond connecting the phosphate to C -5'. After such cleavage, to which nucleoside is the phosphate now attached?

Is the accompanying figure DNA or RNA? Is the circle closer to the 5' or 3' end?

In 1953, Watson and Crick published a paper that described the structure of DNA.

All other factors being equal, the renaturation of the three classes of complementary nucleic acid sequences occurs in what order, from fastest to slowest?

If 15 percent of the nitrogenous bases in a sample of DNA from a particular organism is thymine, what percentage should be cytosine?

In RNA, uracil is present instead of the thymine in DNA.

Describe four major functions of DNA in a cell.

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Modifications of Mendelian Ratios

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Linkage and Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bactierophages

DNA Replication and Recombination

Chromosome Structure and Dna Sequence Organization

The Genetic Code and Transcription

Translation and Proteins

Gene Mutation, Dna Repair, and Transposition

Regulation of Gene Expression

The Genetics of Cancer

Recombinant Dna Technology

Genomics and Proteomics

Applications and Ethics of Genetic Engineering and Biotechnology

Developmental Genetics

Quantitative Genetics and Multifactorial Traits

Population and Evolutionary Genetics

Filters

Exam 9: DNA Structure and Analysis

At what approximate wavelengths do DNA, RNA, and proteins maximally absorb light?

Suppose that the dinucleotide in the accompanying figure were cleaved with the enzyme spleen diesterase, which breaks the covalent bond connecting the phosphate to C -5'. After such cleavage, to which nucleoside is the phosphate now attached?

Is the accompanying figure DNA or RNA? Is the circle closer to the 5' or 3' end?

In 1953, Watson and Crick published a paper that described the structure of DNA.

All other factors being equal, the renaturation of the three classes of complementary nucleic acid sequences occurs in what order, from fastest to slowest?

If 15 percent of the nitrogenous bases in a sample of DNA from a particular organism is thymine, what percentage should be cytosine?

In RNA, uracil is present instead of the thymine in DNA.

Describe four major functions of DNA in a cell.

Introduction to Genetics

Mitosis and Meiosis

Mendelian Genetics

Modifications of Mendelian Ratios

Sex Determination and Sex Chromosomes

Chromosome Mutations: Variation in Number and Arrangement

Linkage and Chromosome Mapping in Eukaryotes

Genetic Analysis and Mapping in Bacteria and Bactierophages

DNA Replication and Recombination

Chromosome Structure and Dna Sequence Organization

The Genetic Code and Transcription

Translation and Proteins

Gene Mutation, Dna Repair, and Transposition

Regulation of Gene Expression

The Genetics of Cancer

Recombinant Dna Technology

Genomics and Proteomics

Applications and Ethics of Genetic Engineering and Biotechnology

Developmental Genetics

Quantitative Genetics and Multifactorial Traits

Population and Evolutionary Genetics

Filters