Biology Quizs

Females have two X chromosomes.

• Females have one X and one Y chromosome.

• Females have two X chromosomes.

• Females have three X chromosomes.

• Females have no X chromosomes.

Chromosome

• A linear DNA molecule tightly coiled around proteins. Contains genes.

• A type of RNA molecule involved in protein synthesis.

• A structure that carries nutrients in the blood.

• A cellular organelle responsible for energy production.

Meiosis

• A type of cell division that reduces the chromosome number by half, creating four haploid cells, each genetically distinct from the parent cell.

• A process that occurs only in prokaryotic cells to replicate DNA.

• A form of asexual reproduction that results in two identical daughter cells.

• A method of cell division that occurs in somatic cells to produce diploid cells.

Human body cells contain

• 23 chromosomes.

• 46 chromosomes.

• 92 chromosomes.

• 30 chromosomes.

Chromosome number in mitosis

• Daughter cells have 23 chromosomes.

• Daughter cells have 46 chromosomes.

• Daughter cells have 92 chromosomes.

• Daughter cells have 30 chromosomes.

Mitosis occurs for the growth, repair, and replacement of damaged cells.

• Meiosis occurs for the formation of gametes during sexual reproduction.

• Mitosis is responsible for producing genetic diversity.

• Meiosis is a process that occurs in somatic cells.

• Mitosis results in four daughter cells.

Importance of mitosis in asexual reproduction

• Mitosis allows organisms to reproduce asexually by creating identical offspring.

• Mitosis is responsible for genetic variation in offspring.

• Mitosis occurs only in sexual reproduction processes.

• Mitosis helps in the repair of damaged tissues.

Mitosis

• A form of cell division that produces two 'daughter' cells.

• A process of protein synthesis in cells.

• A type of cellular respiration.

• A method of DNA replication.

Importance of meiosis for sexual reproduction

• Meiosis increases the chromosome number, creating identical offspring.

• Meiosis reduces the chromosome number by half, creating gametes and ensuring genetic diversity.

• Meiosis occurs only in asexual reproduction and has no role in sexual reproduction.

• Meiosis is a process that only occurs in plants and not in animals.

Gametes

• Reproductive cells that unite during sexual reproduction to form a new organism.

• Cells that provide energy for the organism.

• Cells that are responsible for the immune response.

• Cells that help in the digestion process.