Reproduction Quiz

What is asexual reproduction?

• Reproduction involving two parents

• Reproduction involving fusion of male and female gametes

• Reproduction that does not involve the fusion of gametes

• Reproduction that always results in genetically diverse offspring

Answer explanation

Asexual reproduction is the process that does not involve the fusion of gametes, unlike sexual reproduction which does. This results in offspring that are genetically identical to the parent.

Which of the following is an example of asexual reproduction?

• Fertilization in plants

• Binary fission in bacteria

• Sexual reproduction in animals

• Cross-pollination in flowers

Answer explanation

Binary fission in bacteria is an example of asexual reproduction where a single organism divides into two identical organisms.

What is sexual reproduction?

• Reproduction that involves only one parent

• Reproduction that involves two parents contributing genetic material

• Reproduction without the use of gametes

• Reproduction that results in offspring identical to the parent

Answer explanation

Sexual reproduction involves two parents contributing genetic material, leading to genetic diversity in offspring.

During mitosis, how many chromosomes does a human cell have before division if the original cell is diploid?

• 23

• 46

• 92

• 69

Answer explanation

During mitosis, a human cell with diploid original cell will have 46 chromosomes before division, as each diploid cell contains 46 chromosomes.

After mitosis, how many chromosomes do each of the two new cells have in humans?

• 23

• 46

• 92

• 69

Answer explanation

After mitosis, each of the two new cells in humans will have 46 chromosomes, as the total number of chromosomes is maintained during cell division.

During meiosis, how many chromosomes does a human cell have before division if the original cell is diploid?

• 23

• 46

• 92

• 69

Answer explanation

The human cell has 46 chromosomes before division during meiosis as it is diploid, meaning it has two sets of chromosomes.

After meiosis I, how many chromosomes does each cell have in humans?

• 23

• 46

• 92

• 69

Answer explanation

After meiosis I, each cell has 23 chromosomes in humans as the chromosome number is halved during this process.

After meiosis II, how many chromosomes does each of the four cells have in humans?

• 23

• 46

• 92

• 69

Answer explanation

After meiosis II, each of the four cells has 23 chromosomes in humans, as the chromosome number is halved during meiosis resulting in haploid cells.

Which process is responsible for genetic variation in sexual reproduction?

• Mitosis

• Meiosis

• Binary fission

• Budding

Answer explanation

Meiosis is responsible for genetic variation in sexual reproduction by creating haploid cells with unique combinations of genes through processes like crossing over and independent assortment.

What is the main purpose of mitosis in multicellular organisms?

• To produce gametes

• To increase genetic diversity

• For growth and repair of tissues

• To produce offspring

Answer explanation

The main purpose of mitosis in multicellular organisms is for growth and repair of tissues, not to produce gametes, increase genetic diversity, or produce offspring.