Question

7. Define the following terms:
(a) Cell
(b) Cell organelle
(c) Mitosis
(d) Meiosis
(e) Evolution
(0) Crossing-over
(g) Karyokinesis (h) Diploid
(1) Interphase​

Answer 1

Answer:

a) cell

Explanation:

the structural and functional unit of life is called cell

Answer 2

Explanation:

Hey mate

a) A cell is the structural and fundamental unit of life.

b) Cell organelle is a specialized entity present inside a particular type of cell that performs a specific function.

c) In cell biology, mitosis is a part of the cell cycle when replicated chromosomes are separated into two new nuclei. Cell division gives rise to genetically identical cells in which the number of chromosomes is maintained.

d)Meiosis is a special type of cell division in sexually-reproducing organisms used to produce the gametes, such as sperm or egg cells. It involves two rounds of division that ultimately result in four cells with only one copy of each chromosome.

e)In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.

0) Chromosomal crossover, or crossing over, occurs when a child's chromosome is formed from joining together broken chunks of the two parents' chromosomes.

g) Karyokinesis is the division of the nucleus, and is followed by Cytokinesis, the division of the cell cytoplasm.

h) Diploid is a cell or organism that has paired chromosomes, one from each parent. In humans, cells other than human sex cells, are diploid and have 23 pairs of chromosomes.

I) Interphase is the portion of the cell cycle that is not accompanied by observable changes under the microscope, and includes the G1, S and G2 phases. During interphase, the cell grows, replicates its DNA and prepares for mitosis.

I hope it will help you.