Ch. 5 Flashcards

Genetic Control of Cell Function and Inheritance (27 cards)

1
Q

Each human cell has how many different chromosome pairs?

A

23 p.95-96

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2
Q

The base used in transmitting genetic information needed for protein synthesis that replaces thymine in a RNA structure?

A

Uracil p.89

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3
Q

Wound healing depends on:

A

Mitosis p.96

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4
Q

Definition of a carrier?

A

heterozygous for a recessive trait but does not manifest the trait p.98

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5
Q

Genomic mapping:

A
Give a chromosome location to genes
Assigns genes to particular chromosomes
helpful in mgmt of specific diseases
useful in predicting of diseases
p.99-100
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6
Q

Meiosis occurs in which types of cells?

A

Gamete producing p. 96

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7
Q

Polygenic inheritance

A

involves multiple genes p. 98

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8
Q

23 paris of chromosomes, half mom, half dad, one of those is sex chromosome. What are the other 22 pairs called?

A

Autosomes p. 95

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9
Q

RNA interference is:

A

A technology to stop faulty gene activity from producing unwanted disease proteins p. 103

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10
Q

Difference between RNA and DNA:

A

RNA is a single-stranded molecule p.89

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11
Q

Messenger RNA is the template for protein synthesis (true/false)

A

true p. 89-90

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12
Q

International effort to develop a map to link genetic variations and complex diseases is known as:

A

HapMap p.99

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13
Q

Gene on band 2, region 2 of the short arm of the X chromosome. documented as:

A

Xp22 p.96-98

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14
Q

What is being compared when DNA fingerprinted is used in forensic pathology?

A

Banding pattern p. 103

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15
Q

The inactive chromatin mass used to identify the genetic sex of unborn fetus under a microscope:

A

Barr body p.95

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16
Q

Which type of RNA is a result of the process of transcription

A

Messenger RNA p. 91

17
Q

Xq97 would be found?

A

Band 9, region 7 long arm of X chromosome p.97

18
Q

Synthetic insulin was made possible by?

A

Recombinant DNA technology p. 87

19
Q

Explain an aspect of the underlying structure of DNA to a colleague who is unfamiliar with genetics?

A

In the base pairs, adenine combines with thymine and guanine with cytosine p. 88-89

20
Q

Transcription is initiated by which?

A

RNA polymerase p. 91

21
Q

A recessive trait occurs when:

A

Two copies (homozygous) of the recessive alle are present p. 98

22
Q

Three aspects that differ RNA from DNA:

A

Sugar in each nucleotide of RNA is ribose
RNA is single-stranded
RNA’s thymine base is replaced by uracil
p.91

23
Q

Definition of a haplotype:

A

Small variation in gene sequence p. 99

24
Q

Polygenic inheritance pattern means:

A

multiple genes at different loci p.98

25
Enzymes that assist in repairing DNA defects by recognizing a defect, cleaving the abnormal chain, and removing the distorted regions?
Endonucleases p. 90
26
The production of proteins requires DNA and second nucleotide RNA. This process is accomplished by which?
Transcription of the DNA code onto mRNA Translation of mRNA cod by transfer RNA p.93
27
What kind of trait is expressed only in homozygous pairing?
Recessive trait p. 98