Alterations of generations and developmental trends

Question 1

Gametophyte generation

Answer 1

The stage which produces sex cells in plants and

algae.

Question 2

Sporophyte generation

Answer 2

Generation of a plant with alternation of generations that begins from a diploid zygote.

Question 3

Meiosis

Answer 3

The process in eukaryotic, sexually-reproducing animals that reduces the number of chromosomes in a cell before reproduction.

Question 4

Mitosis

Answer 4

A part of the cell cycle in which replicated chromosomes are separated into two new nuclei.

Question 5

Haploid

Answer 5

A cell that contains a single set of chromosomes.

Question 6

Diploid

Answer 6

A cell that contain two copies of each chromosome.

Question 7

Fertilization

Answer 7

Process of combining the male gamete, or sperm, with the female gamete, or ovum.

Question 8

Germination

Answer 8

A process, controlled by enzymes , in which the seed begins to develop into a new young plant.

Question 9

Sexual Reproduction

Answer 9

A type of reproduction that involves a complex life cycle in which a gamete (such as a sperm or egg cell) with a single set of chromosomes (haploid) combines with another to produce an organism composed of cells with two sets of chromosomes (diploid).

Question 10

Asexual reproduction

Answer 10

Type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.