Cell Division and Organism growth

Cell Division and Organism growth

By Valéria Freitas

​https://youtu.be/q2CSqC_waE8

Multiple Choice

A cell in the inside of a person’s cheek is undergoing mitosis.

What is the most likely result of this process?

• the formation of two genetically identical daughter cells

• the formation of two daughter cells

• the formation of four genetically identical daughter cells

• the formation of two genetically identical daughter cells

Multiple Choice

Which of the following best describes how daughter cells relate to a parent cell after cell division by mitosis?

• Each daughter cell has the same genes as the parent cell.

• Each daughter cell has twice the amount of genetic material as the parent cell.

• Each daughter cell has a different set of genes from the parent cell, allowing the daughter cells to carry out different functions.

• Each daughter cell has half the amount of genetic material as the parent cell.

Multiple Select

What are two likely results of mitosis in a mouse? Choose 2 answers:

• an increase in body size as the mouse matures

• the production of gametes, such as egg or sperm cells

• the production of haploid cells

• the renewal of epithelial tissues in the mouse’s large intestine

Multiple Choice

An egg cell and a sperm cell fuse to produce the first cell of a new, diploid organism. The new cell contains pairs of chromosomes, with one set from each gamete.

Which statement most accurately describes the pairs of chromosomes in the diploid cell?

• the chromosomes are non-homologous and have same set of genes, with each set being expressed in a different cell type

• The chromosomes are homologous and have the same set of genes, with identical copies, of each genes

• the chromosomes are non-homologous and have different sets of genes, with each set being expressed in a different cell type

• The chromosomes are homologous and have the same set of genes, but potentially different variations of those genes.

Multiple Choice

Which of the following statements is true about chromosomes in multicellular organisms?

• Chromosomes are located in the cytoplasm of the cell.

• Chromosomes are located in both the nucleus and cytoplasm of the cell.

• Each chromosome contains a large number of genes.

• A chromosome contains numerous DNA molecules.

Multiple Choice

Over its lifespan, a horse carries out many life processes. It consumes food for energy, grows larger in size, repairs muscle tissues that sustain damage during exercise, and produces gametes for reproduction.

Which of the following best describes how mitosis is important for the processes described above?

• Mitosis is the main process involved in the horse’s production of gametes for reproduction.

• Mitosis is the main process involved in the horse’s growth and tissue repair.

• Mitosis is the main process involved when the horse breaks down food for energy.

Multiple Choice

Following the fusion of an egg cell and sperm cell, the resulting diploid cell divides by mitosis to create two new daughter cells. Each daughter cell contains pairs of chromosomes, with one set inherited from each parent.

Which of the following best describes the pairs of chromosomes that are present in each newly formed daughter cell?

• The pairs are non-homologous chromosomes that contain the same sets of genes.

• The pairs are non-homologous chromosomes that contain different sets of genes.

• The pairs are homologous chromosomes that have the same set of genes, but likely different variations of those genes.

• The pairs are homologous chromosomes that have identical copies of every gene.