Chapter One: Overview of Genetics Flashcards

1
Q

What is a proteome?

A

An entire collection of proteins a cell makes at a given time.

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2
Q

The proteome determines the ___ and ___ of the cell.

A

Structure; function

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3
Q

Gene expression at a molecular level involves ___ and ___.

A

transcription; translation

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4
Q

Transcription at the molecular level looks like?

A

producing mRNA

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5
Q

translation at the molecular level of gene expression looks like?

A

production of a polypeptide

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6
Q

Genetic variation is variation in ___

A

traits

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7
Q

Gametes are ___ while somatic cells are __

A

haploid; diploid

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8
Q

What are the three branches of genetics?

A

molecular
population
transmission

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9
Q

What is genetics the study of?

A

heredity in all its manifestations

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10
Q

What did Hippocrates state in genetics?

A

semen is the main genetic carrier - “bald-headed begets bald-headed”

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11
Q

Democritus argued for ___ v. ___ in the early ages.

A

nature; nurture

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12
Q

Plato believed?

A

It takes two to tango, both male and female contribute

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13
Q

Who developed the first, comprehensive theory of inheritance?

A

Aristotle

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14
Q

What did Artistotle’s Theory of Inheritance state?

A

Semen provides a form, menstrual blood contains matter; form controls and shapes matter

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15
Q

William Harvey is known for?

A

Theory of Epigenesis

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16
Q

What is the Theory of Epigenesis?

A

all parts of embryo are present potentially in egg
organism evolves by build up of these parts

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17
Q

Antoine van Leeuwenhoek believed sperm provides __ while the egg ___

A

essential life-giving properties; furnishes the environment for nutrition and development

18
Q

What is the Theory of Preformationism?

A

organism is in on of the sex cells as a homunculus

19
Q

The Theory of Preformationism separated what two groups?

A

Spermists - homonculus found in sperm

Ovists - homonculus found in egg

20
Q

Who discredited the theory of preformationism?

A

Caspar Wolff

21
Q

Who proposed the first theory of evolution?

A

Jean Baptiste de Lamarck

22
Q

What are the two major laws of the Theory of the Inheritance of
Acquired Characteristics?

A

Change in the environment
change in needs, excess (dis)use, incr/decr in size of organ or structure

All changes of such nature are inherited

23
Q

What was the first theory of evolution?

A

Theory of the Inheritance of Acquired Characteristics

24
Q

Darwin proposed the __ _ __ __ _ __ __

A

Theory of Organic Evolution by Natural Selection

25
Summarize the Theory of Organic Evolution by Natural Selection
Variation is CHARACTERISTIC of animals and plants Variation can be INHERITED Every organism OVERPRODUCES offspring Struggle for SURVIVAL ensues Most FAVORABLE conditions are more likely top survive and leave offspring Passion of favorable variations leads to EVOLUTION In short - need for natural selection, you get it
26
Darwin aslo proposed the __ __ __ __
Provisional Hypothesis of Pangenesis
27
Describe Darwin's Pangenesis
produce gemmules - exact but minute copies of each body part Artwork
28
Who disproved Darwin's Pangenesis?
August Weismann
29
August Weismann proposed the ___ __ __ __ which...
Germplasm Theory of Heredity Two types of tissue Somatoplasm - body Germplasm - hereditary
30
The germplasm is associated with the __
nucleus
31
Who were the two most important plant hybridists before Mendel?
Joesph Kolreuter Karl Gaertner
32
Mendel proposed what theory?
The Particulate Theory of Inheritance
33
Who rediscovered Mendel's work?
Hugo de Vries, Carl Correns, and Erich von Tschermak
34
Who was the first man to coin the term genetics?
William Bateson
35
William Bateson is known for?
experimentally demonstrating the extension of Mendel's Laws to animals
36
Who coined the term Eugenics?
Francis Galton
37
Define eugenics?
improvement of a population by selecting its best specimen for breeding
38
Galton advocated for __ eugenics and __ eugenics which encouraged?
positive; negative encouraged reproduction of those with beneficial trains and discouraged undesirable trains
39
What are three ways the Eugenics movement had a strong impact on public policy?
Compulsory sterilization of 'eugenically-unfit' individuals Laws invalidating marriages between 'eugenically-unfit' individuals Immigration Restriction Act
40
What are three implications of modern eugenics?
prenatal diagnosis artificial insemination cloning
41
When is the product rule used?
for problems in which outcomes are independent of each other