Reproduction Systems Flashcards

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1
Q

organs that produce sperm and sex hormones

A

testes

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2
Q

pouch of skin containing testes. It hangs outside the body to keep the sperm cooler than normal body temperature.

A

scrotum

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3
Q

sacs containing egg cells

A

follicles

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4
Q

tiny tubes joining the ovaries to the uterus. Fertilisation occurs in one of these tubes.

A

fallopian tubes

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5
Q

penetration of the ovum by a sperm

A

fertilisation

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6
Q

joining together of male and female reproductive cells

A

sexual reproduction

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7
Q

reproductive cells (sperm or ova) containing half the genetic information of normal cells

A

gametes

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8
Q

male reproductive cell. It consists of a head, a middle section and a tail used to swim towards the egg.

A

sperm

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9
Q

female gametes or sex cells. Singular = ovum.

A

ova

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10
Q

cell formed by the fusion of two gametes; fertilised ovum before it starts to divide into more cells

A

zygote

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11
Q

reproduction where the egg remains in the female and is fertilised by sperm inserted into the female

A

internal fertilisation

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12
Q

the act of inserting sperm into the female; also called sexual intercourse or mating

A

copulation

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13
Q

act of inserting sperm into the female; also called copulation or mating

A

sexual intercourse

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14
Q

cell division process that results in new cells with half the number of chromosomes of the original cell

A

meiosis

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15
Q

a new branch of science that involves studying the effect of our experiences on the expression of our genetic information

A

epigenetics

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16
Q

genetic material passed on from both parents, from the nucleus of both the sperm and the ovum

A

Nuclear DNA

17
Q

genetic material from the mitochondria, passed on only from the mother

A

Mitochondrail DNA

18
Q

release of sperm

A

ejaculation

19
Q

combination of fluid and sperm

A

semen

20
Q

twins developed from the same fertilised egg

A

identical twins

21
Q

twins developed from different fertilised eggs

A

fraternal twins