Genetics Flashcards

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1
Q

What is Heredity?

A

The passing down of traits from parents to offspring

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2
Q

What is Genetics?

A

The study of how traits are inherited

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3
Q

What is Budding?

A

A new duplicate plant or animal forms off the side of the parent

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4
Q

What is Asexual Reproduction?

A

One parent - genetically identical

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5
Q

What is Sexual Reproduction?

A

Two parents with combined genetics

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6
Q

What is Natural Selection?

A

Adaptions over time that increase survival

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7
Q

What is Selective Breeding?

A

It’s a controlled process when you breed two organisms for the desired traits

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8
Q

Who’s known as the Father of Genetics?

A

Gregor Mendall

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9
Q

Who is Charles Darwin known as? What theory is he famous for?

A
  • The theory of Natural Selection
  • He studied the finches’ beaks
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10
Q

What is the difference between Natural Selection and Selective breeding?

A

Natural selection happens in nature and selective breeding is a controlled process.

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11
Q

Describe why the Finches Darwin observed had different beaks on different islands even though they are the same species.

A

Their food sources changed so their beaks changed to increase survival

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12
Q

What’s an example of Natural Selection?

A

The Finches’ beaks changing over time

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13
Q

What’s an example of Selective Breeding?

A

Dog breeding

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14
Q

What’s the relationship between parent and offspring DNA (Asexual Reproduction)

A

Identical (the exact same DNA)

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15
Q

What’s the relationship between parent and offspring DNA (Sexual Reproduction)

A

A variation

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16
Q

An advantage (Asexual Reproduction)

A

Only needs one parent

17
Q

An advantage (Sexual Reproduction)

A

Variation of genes (multiple options for traits)

18
Q

A disadvantage (Asexual Reproduction)

A

Identical genes

19
Q

A disadvantage (Sexual Reproduction)

A

Takes 2 parents and a long time

20
Q

What are the two types of asexual reproduction (Describe Each)

A

Budding - Offspring growing of the parent (ex: flower budding)
Fission - Cell Divison (ex: bacteria)

21
Q

How many chromosomes do humans get from each parent cell?

A

23 - sperm
= 46 chromosomes in humans (each get 23)
23 - egg

22
Q

In total, how many chromosomes do humans have?

A

46

23
Q

What is Alleles?

A

The different options a single gene has for a trait

24
Q

What is Genotype?

A

The allele pairs that an organism has inherited (the two letters)

25
Q

What’s Homozygous?

A

has two identical letters for a specific trait (2 dominant alleles or 2 recessive alleles) RR or rr

26
Q

What’s Heterozygous?

A

Has two different letters for a specific trait ( 1 dominant and 1 recessive allele) Rr

27
Q

What’s phenotype?

A

The way an organism looks or behaves the physical traits

28
Q

Is a Dominant allele a capital letter? True or False

A

True

29
Q

Is a Reccesive allele a lowercase letter? True or False

A

True

30
Q

What are the two types of traits in genetics?

A

Dominant and Reccesive

31
Q

What’s DNA?

A

a molecule containing hereditary material that codes an organism’s traits and characteristics.