Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false. Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

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Answer 1

Question

Chapter 20, Problem 20.6PS

(a)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(b)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is in the gene’s coding region.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(c)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when no promoter is present” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(d)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes looping out of the intervening DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(e)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes alternative splicing of the DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

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Need help. Contrast DNA replication with gene expression (transcription→translation)—when does each occur? What molecules are involved? How much of the DNA is utilized?

INSTRUCTION: = IF BOTH STATEMENT ARE TRUE = IF FIRST STATEMENT IS TRUE WHILE SECOND STATEMENT IS FALSE = IF FIRST STATEMENT IS FALSE WHILE SECOND STATEMENT IS TRUE = IF BOTH STATEMENTS ARE FALSE STAMENT 1: RNA splicing is the step in post transcriptional processing where intervening sequences are removed STAMENT 2: 5’ to 3’ direction is the direction of growth of the peptide chain ANSWER: STAMENT 1: The enzyme that joins the gaps in newly synthesized DNA is called DNA polymerase STAMENT 2: The name of the compound formed when cytosine is bonded to ribose is cytidine ANSWER: STAMENT 1: Codon is a term that refers to the 3-nucleotide code for amino acids in mRNA STAMENT 2: Transition is a kind of mutation where a purine changes to another purine ANSWER:

Regulation of Genes and Their products 1. Given the following genotypes, explain how the mutation (identified by a (-) superscript) wil affect E. coll grown in lactose medium. Will the lac operon be on or off? Will there be a complete set of gene products from the lac operon? What will be the implication of the missing gene product, if ever? Will the cell be able to survive in the lactose medium or not? a. I+p+o+z- y+ b. i- p+o+z+y+ c. i+p+o- z+y+ d. i+p- o+z+y+ 2. In terms of the trp operon, differentiate between two normal bacterial cultures, one grown in a medium supplied with tryptophan and the other medium without tryptophan. 3. Experiments show that mutations at gene E lead to non-repressible transcription of trp genes. Why?

Answer 2

Question

Chapter 20, Problem 20.6PS

(a)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(b)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is in the gene’s coding region.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(c)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when no promoter is present” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(d)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes looping out of the intervening DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(e)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes alternative splicing of the DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

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Answer 3

Question

Chapter 20, Problem 20.6PS

(a)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(b)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is in the gene’s coding region.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(c)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when no promoter is present” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(d)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes looping out of the intervening DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(e)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes alternative splicing of the DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

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Answer 4

Question

Chapter 20, Problem 20.6PS

(a)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(b)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is in the gene’s coding region.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(c)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when no promoter is present” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(d)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes looping out of the intervening DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(e)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes alternative splicing of the DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

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Answer 5

Chapter 20, Problem 20.6PS

(a)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(b)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is in the gene’s coding region.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(c)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when no promoter is present” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(d)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes looping out of the intervening DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

(e)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes alternative splicing of the DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 6

Chapter 20, Problem 20.6PS

(a)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 7

Chapter 20, Problem 20.6PS

(a)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 8

(b)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is in the gene’s coding region.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 9

(b)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it is in the gene’s coding region.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 10

(c)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when no promoter is present” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 11

(c)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when no promoter is present” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 12

(d)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes looping out of the intervening DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 13

(d)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes looping out of the intervening DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 14

(e)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes alternative splicing of the DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 15

(e)

Summary Introduction

To determine: Whether the statement, “An enhancer may increase the frequency of transcription initiation for its associated gene when it causes alternative splicing of the DNA.” is true or false.

Introduction: A short part of the DNA which is involved in increasing the probability of transcription of a particular gene is called an enhancer. It is usually 50-1500 base pairs long. Usually, proteins such as activators bind it to the DNA.

Answer 16

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Answer 19

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Solution Summary: The author analyzes whether the statement, "An enhancer may increase the frequency of transcription initiation for its associated gene when it is located 1000 nucleotides upstream of the gene’s core promoter" is true or

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