Chapter 8 Microbial Genetics

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eiren

通報

問題一覧

The physical characteristics of an organism make up the organism’s

Phenotype

An organism detoxifies H2O2. This statement describes the organism's

Phenotype

What is a gene?

A segment of DNA that codes for a specific product

An organism has a gene that codes for catalase. This statement describes the organisms

Genotype

Which of the following incorrectly describes a DNA molecule?

Single stranded

If strands of DNA are said to be antiparallel then they are

Oriented in opposite directions

The antisense strand of DNA is

Complementary to the mRNA

DNA replication uses

DNA -directed DNA polymerase

Which RNA primer (A or B) is the starting point for the leading strand?

RNA primer A

Which RNA primer is the starting point for the discontinuous strand?

RNA primer B

Which RNA primer is the starting point for the sense strand?

Can't tell

In prokaryotes, two replication forks arise at the origin of replication and more in opposite directions until

They meet

In transcription:

DNA - directed RNA polymerase makes mRNA

In translation:

Ribosomes read mRNA and make protein

The partial strand labelled A would be part of the

DNA sense strand

The strand labelled B would be part of the

DNA anti-sense strand

The strand labelled C would be part of the

mRNA

The strand labelled D would be part of the

tRNA

The three nucleotides in the shaded box G are a/an

Codon

The three nucleotides in the shaded box labeled H are a/an

Anticodon

The three nucleotides in the shaded box labaled F are a/an

Triplet

If the sequence of the DNA strand is 5’TACTCATGGGTGTTGCATACT3’ the sequence of the resulting protein is

Met-Gln-His-Pro

Ribosomes are used for

Translation

DNA-directed RNA polymerase makes:

Both tRNA and mRNA

An inducible enzyme

Is synthesized when the depressor is inhibited by the substrate

A repressible enzyme

Is not synthesized when the end product binds to the repressor

Synthesis of enzymes coded for by genes that are part of the lac open

Is not turned on unless lactose is present

Synthesis of enzymes coded for by genes that are part of the trp open

Is inhibited when the co-repressor and the repressor bind to the operator

Mutations are changes in the base sequence of a DNA molecule

True

Mutations are always harmful to an organism

False

A frame shift mutation is the result of

The addition or deletion of a base or bases to a strand of DNA

A point (single base pair) mutation will change the product coded for by the gene in which the mutation occurs

Not necessarily

A frameshift mutation will change the product codeel for by the gene in which the mutation occurs

True

Tests that identify mutant cells

May detect mutants that have either gained or lost metabolic capabilities

The Ames test

Uses back mutation (reversion) of salmonella auxotrophs exposed to chemicals as a measure of carcinogenicity

When two chromosomes come in contact and exchange genetic material the result is

Recombination

The process by which genetic material is passed from one cell to another through a sex pilus is

Conjugation

The process by which a cell takes up naked pieces of DNA in solution is

Transformation

The process by which genetic material is passed from one cell to another by a virus is

Transduction

A small piece of DNA that can move from one location in a chromosome to another is

A transposen

A small, circular, self-replicating, extra-chromosomal piece of DNA is

A plasmid

211 exam 2 ch18 part 1

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211 exam 2 ch18 part 1

100問 • 1年前

eiren

211 exam 2 ch18 part 2

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211 exam 2 ch18 part 2

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211 exam 2 ch19 part 1

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211 exam 2 ch19 part 1

The cardiac cycle

The cardiac cycle

211 exam 2 ch22

211 exam 2 ch22

211 lab quiz 4

211 lab quiz 4

211 exam 3 ch 24

211 exam 3 ch 24

211 lab quiz 4 cat anatomy

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211 lab quiz 4 cat anatomy

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211 lab quiz 4 reproductive anatomy extra

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211 lab quiz 4 reproductive anatomy extra

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211 lab quiz 4 urinalysis

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211 lab quiz 4 urinalysis

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211 lab quiz 4 urinary system

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211 lab quiz 4 urinary system

Urinary system

Urinary system

211 exam 3 ch 23

211 exam 3 ch 23

211 exam 3 ch 25

211 exam 3 ch 25

211 exam 3 ch 26

211 exam 3 ch 26

211 lab quiz 3 terms

211 lab quiz 3 terms

General practice quiz

eiren · 48問 · 1年前

General practice quiz

Quiz 5 histology

Quiz 5 histology

Hormones

Hormones

Diabetes

Diabetes

Reproductive system

Reproductive system

Endocrine system

Endocrine system

Blood

Blood

Lymphatic system

Lymphatic system

Cardiovascular system

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Cardiovascular system

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Cardiovascular system; Blood vessels

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Cardiovascular system; Blood vessels

Respiratory system

Respiratory system

Urinary System

Urinary System

Digestive system

Digestive system

Reproductive system

Reproductive system

Terminology

Terminology

Ch 1

Ch 1

Mini practical

Mini practical

Chapter 2

Chapter 2

Chapter 4

Chapter 4

Chapter 6

Chapter 6

Chapter 7

Chapter 7

Chapter l

Chapter l

Chapter 2

Chapter 2

Chapter 4

Chapter 4

Chapter 5 Microbial Metabolism

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Chapter 5 Microbial Metabolism

33問 • 1年前

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Chapter 5 Microbial Metabolism

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Chapter 5 Microbial Metabolism

Mini practical 2

Mini practical 2

Skills 8

Skills 8

Chapter 6 Microbial Growth

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Chapter 6 Microbial Growth

Skills 7

Skills 7

Chapter 7 Control Of Microbial Growth

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Chapter 7 Control Of Microbial Growth

Skills 5

Skills 5

Skills 4

Skills 4

Skills 6

Skills 6

Chapter 9

Chapter 9

Chapter 10

Chapter 10

Chapter 11

Chapter 11

Chapter 13

Chapter 13

Chapter 12 Fungi, Algae, Protozoa, Multicellular Parasites

eiren · 65問 · 1年前

Chapter 12 Fungi, Algae, Protozoa, Multicellular Parasites

65問 • 1年前

eiren

問題一覧

The physical characteristics of an organism make up the organism’s

Phenotype

An organism detoxifies H2O2. This statement describes the organism's

Phenotype

What is a gene?

A segment of DNA that codes for a specific product

An organism has a gene that codes for catalase. This statement describes the organisms

Genotype

Which of the following incorrectly describes a DNA molecule?

Single stranded

If strands of DNA are said to be antiparallel then they are

Oriented in opposite directions

The antisense strand of DNA is

Complementary to the mRNA

DNA replication uses

DNA -directed DNA polymerase

Which RNA primer (A or B) is the starting point for the leading strand?

RNA primer A

Which RNA primer is the starting point for the discontinuous strand?

RNA primer B

Which RNA primer is the starting point for the sense strand?

Can't tell

In prokaryotes, two replication forks arise at the origin of replication and more in opposite directions until

They meet

In transcription:

DNA - directed RNA polymerase makes mRNA

In translation:

Ribosomes read mRNA and make protein

The partial strand labelled A would be part of the

DNA sense strand

The strand labelled B would be part of the

DNA anti-sense strand

The strand labelled C would be part of the

mRNA

The strand labelled D would be part of the

tRNA

The three nucleotides in the shaded box G are a/an

Codon

The three nucleotides in the shaded box labeled H are a/an

Anticodon

The three nucleotides in the shaded box labaled F are a/an

Triplet

If the sequence of the DNA strand is 5’TACTCATGGGTGTTGCATACT3’ the sequence of the resulting protein is

Met-Gln-His-Pro

Ribosomes are used for

Translation

DNA-directed RNA polymerase makes:

Both tRNA and mRNA

An inducible enzyme

Is synthesized when the depressor is inhibited by the substrate

A repressible enzyme

Is not synthesized when the end product binds to the repressor

Synthesis of enzymes coded for by genes that are part of the lac open

Is not turned on unless lactose is present

Synthesis of enzymes coded for by genes that are part of the trp open

Is inhibited when the co-repressor and the repressor bind to the operator

Mutations are changes in the base sequence of a DNA molecule

True

Mutations are always harmful to an organism

False

A frame shift mutation is the result of

The addition or deletion of a base or bases to a strand of DNA

A point (single base pair) mutation will change the product coded for by the gene in which the mutation occurs

Not necessarily

A frameshift mutation will change the product codeel for by the gene in which the mutation occurs

True

Tests that identify mutant cells

May detect mutants that have either gained or lost metabolic capabilities

The Ames test

Uses back mutation (reversion) of salmonella auxotrophs exposed to chemicals as a measure of carcinogenicity

When two chromosomes come in contact and exchange genetic material the result is

Recombination

The process by which genetic material is passed from one cell to another through a sex pilus is

Conjugation

The process by which a cell takes up naked pieces of DNA in solution is

Transformation

The process by which genetic material is passed from one cell to another by a virus is

Transduction

A small piece of DNA that can move from one location in a chromosome to another is

A transposen

A small, circular, self-replicating, extra-chromosomal piece of DNA is

A plasmid