Heredity Flashcards

science

1
Q

Phenotype

A

observable traits

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2
Q

Genotype

A

name of the alleles

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3
Q

Heredity

A

traits that are passed on from parents to offspring

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4
Q

Gene

A

segment of DNA that codes for a particular trait

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5
Q

Alleles

A

variety of the same gene as in dimple or not dimple

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6
Q

Offspring

A

babies

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7
Q

Traits

A

characteristics

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8
Q

Sexual Reproduction

A

requires male and female gametes to produce offspring

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9
Q

Asexual reproduction

A

does not require male and female gametes to produce offspring

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10
Q

Mitosis

A

cells division that results in two identical daughter cells

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11
Q

meiosis

A

cell division that produces sex cells, each cell is unique

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12
Q

DNA

A

located in the nucleus of a cell; it is a genetic material

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13
Q

Probability

A

a chance

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14
Q

Gametes

A

sex cells

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15
Q

Punnett square

A

diagram showing how male and female alleles might combine in offspring

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16
Q

Fertilization

A

the process by which sperm and egg combine to form an offspring

17
Q

zygote

A

a fertilization egg

18
Q

recessive

A

a gene that is expressed only when there are 2 copies of the same alleles

19
Q

Homozygous Recessive

A

2 copies of the same recessive alleles

20
Q

dominant

A

a gene that is expressed either with 1 or 2 copies of the alleles

21
Q

homozygous dominant

A

2 copies of the same dominant allele and one recessive alleles;ie..Tt,Gg,Ff

22
Q

heterozygous

A

a mixed gene with one dominant allele and one recessive allele

23
Q

Gregor Mendel

A

father of genetics.he experimented with pea plants

24
Q

cross pollination

A

the crossing of gene between two flower; done by insects, human winds

25
cross breeding
the crossing of genes between two animals of the same species; humans involve in breeding to select desired traits
26
purebred
a pure homozygous dominant or homozygous Recessive
27
hybrid
a mixture of two gene one dominant and one recessive