Medel and Heredily Flashcards

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1
Q

Who was considered the pioneer /father of genetics

A

Gregor Mendel

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2
Q

Mendel studied how many traits of pea pod

A

7 traits

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3
Q

P generations

A

Mendel crossed purebred plants with each other

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4
Q

F1 generation

A

Mendel observer that all of the offspring were purple flowers and that none were white

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5
Q

F2 generation

A

Mendel the crossed 2 of the F1 offspring. These offsprings are known as the F2 generation.

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6
Q

Mendel’s Hypothesis

A

1) organisms have 2 factors that describe each trait
2) Inherit one allele front ather and other mother

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7
Q

Alleles

A

Different forms of the same gene for a specific trait

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8
Q

Dominant

A

Trait that is expressed in the offspring .

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9
Q

Recessive

A

Trait is only exhibit if dominant trait is absent

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10
Q

Phenotype

A

What the organism looks like (physical appearance )

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11
Q

Genotype

A

Genetic makeup of an organism ( we cannot see this )

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12
Q

What are the two forms of genotypes

A

Homozygous
Heterozygous

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13
Q

Homozygous

A

Both identical alleles are either dominant or recessive

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14
Q

Heterozygous

A

Different alleles dominant and one recessive

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15
Q

Some alleles are dominant ( trait is expressed in the offspring ) and other alleles are recessive (trait is only exhibit if dominant is absent )

A

Mendel’s Law of Dominance

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16
Q

Alleles for a trait will separate when the sex cells (gametes ) are former during meiosis

A

Law or Segregation

17
Q

Genes for different trait are inherited independently from each other . Mendel discovered this through his experiments with hybrid cross (2 parents with 2 different traits )

A

Law of Independent Assortment

18
Q

Internal

A

Age, gender ( hormonal differences )

19
Q

External

A

Temperature, nutrition, light, radiation, chemicals, viruses

20
Q

What are punnet squares used for ?

A

To predict and compare possible genetic variations resulting from a Cross

21
Q

Orginal parent

A

P1 generation

22
Q

Offspring of the parent plants

A

F1 generation

23
Q

Offspring of the F1 generation

A

F2 generation

24
Q

Incomplete dominance

A

Both alleles are partially shown by blending

25
Q

Codominace

A

Both alleles are completely expressed

26
Q

Hybrid is also know as

A

Heterozygous

27
Q

What are the 6 patterns of inheritance ?

A
  1. Dominance
  2. Recessive
  3. Incomplete Dominance
  4. Co dominance
  5. Sex linked traits
  6. Polygenic traits
28
Q

Sex linked traits

A

Traits carried on the sex chromosomes ( mostly the x chromosome )

29
Q

Polygenic traits

A

Trait produced from May les on more than one chromosome