Chapter 5 Review - Meiosis

Question 1

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

Answer 1

First

Question 2

A term for either a sperm or an egg?

Answer 2

Gamete

Question 3

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

Answer 3

Haploid

Question 4

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

Answer 4

Pollination

Question 5

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

Answer 5

Morula

Question 6

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

Answer 6

Fertilization

Question 7

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

Answer 7

Ovules

Question 8

The middle layer of the gastrula.

Answer 8

Mesoderm

Question 9

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

Answer 9

Mating

Question 10

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

Answer 10

Pollen

Question 11

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

Answer 11

Trimesters

Question 12

The inner-most layer of the gastrula.

Answer 12

Endoderm

Question 13

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

Answer 13

Assortment

Question 14

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

Answer 14

Sexual

Question 15

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

Answer 15

Meiosis

Question 16

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

Answer 16

External

Question 17

The outermost layer of the gastrula.

Answer 17

Ectoderm

Question 18

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

Answer 18

Third

Question 19

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

Answer 19

Zygote

Question 20

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

Answer 20

Gastrula

Question 21

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

Answer 21

Crossing Over

Question 22

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

Answer 22

Embryo

Question 23

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

Answer 23

Wind

Question 24

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

Answer 24

Blastula

Question 25

In flowering plants, pollen is usually transferred by ________.

Answer 25

Insects

Question 26

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

Answer 26

Homologous

Question 27

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

Answer 27

Diploid

Question 28

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

Answer 28

Second

Question 29

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

Answer 29

Internal