Chapter 5 Review - Meiosis Flashcards

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1
Q

The greatest amount of change occurs in the _______ trimester of development.

A

First

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2
Q

A term for either a sperm or an egg?

A

Gamete

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3
Q

A term describing cells which only have one set of chromosomes in the nucleus?

A

Haploid

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4
Q

The transfer of male gametes toward the female structures in plants is called ______________.

A

Pollination

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5
Q

Very early on in embryonic development, a ball of cells (which is not hollow) develops. This stage is called a _______.

A

Morula

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6
Q

The process of a sperm penetrating an egg cell, in turn combining their genetic contents.

A

Fertilization

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7
Q

The eggs in the female structures of plants are called ________.

A

Ovules

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8
Q

The middle layer of the gastrula.

A

Mesoderm

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9
Q

Behaviours which result in male and female gametes arriving in the same place at the same time.

A

Mating

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10
Q

In many plants, sperm are carried in protective capsules called ______ grains.

A

Pollen

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11
Q

A full term pregnancy is divided up into three stages, or _________.

A

Trimesters

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12
Q

The inner-most layer of the gastrula.

A

Endoderm

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13
Q

Independent ______________ occurs when each chromosome in a homologous pair is pulled to opposite ends on the cell during meiosis | .

A

Assortment

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14
Q

A type of reproduction that requires two parents and results in offspring which differ genetically from the parents.

A

Sexual

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15
Q

A process which produces haploid cells from a diploid parent cell.

A

Meiosis

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16
Q

Frogs and salmon are examples of organisms which utilize ____________ fertilization.

A

External

17
Q

The outermost layer of the gastrula.

A

Ectoderm

18
Q

The greatest growth and development of the brain occurs in the _____ trimester.

A

Third

19
Q

The diploid cell which is the immediate result of a sperm uniting with an egg.

A

Zygote

20
Q

This stage is where the developing embryo has organized it’s cells into three distinctive layers.

A

Gastrula

21
Q

The exchange of genetic material between homologous chromosomes during meiosis | .

A

Crossing Over

22
Q

A zygote which has undergone several rounds of cell division turns into a structure called an _________.

A

Embryo

23
Q

In pollen producing plants that do not have flowers the pollen is usually transferred by the _____.

A

Wind

24
Q

In human embryonic development, the hollow ball that forms early in development is called a __________.

A

Blastula

25
Q

In flowering plants, pollen is usually transferred by ________.

A

Insects

26
Q

_______________ chromosomes are a pair of matching chromosomes which may have different versions of the same genes on them.

A

Homologous

27
Q

The term describing a cell which has two sets of chromosomes within its nucleus.

A

Diploid

28
Q

The mother can start to feel the fetus moving sometimes during the __________ trimester.

A

Second

29
Q

When the sperm and egg meet inside of the mother’s body, then ____________ fertilization has occurred.

A

Internal