Question

Why is meiosis important for organisms? It allows for genetic variation among organisms. It determines which genes are dominant and which are recessive. It produces genetically identical cells. It provides a means of asexual reproduction.

Answer 1

Meiosis is important for organisms since it allows for genetic variation among organisms.

Further Explanation

Cell division

• Cell division is the process in which cells undergo division to form other new cells.

• There are two types of cell division;

Mitosis Division  

• Mitosis is a type of division in which a parent cell undergoes division to yield two daughter cells that are similar to the parent cells.
• The daughter cells have equal number of chromosomes as the parent and are identical to the parent.
• This type of cell division normally occurs in somatic cells of organisms and facilitates growth and development of organisms.

Meiosis division

• Meiosis division is a type of division that occurs in gamete cells where a parent cell divides into four daughter cells that differ from the parent cells in terms of the number of chromosomes.
• In meiosis the daughter cells have half the number of chromosomes as the parent cells.

• Meiosis occurs in the gamete cells and facilitates sexual reproduction in living organisms.

• Meiosis occurs in two phases, that is, meiosis I and meiosis II
• During the process of meiosis several processes occurs that cause genetic variation among organisms.
• These processes include, crossing over, independent assortment of genes, among others.

Crossing over  

• Cross over is the process that occurs during the prophase I phase of the first stage of meiosis known as meiosis I.  

• During the process of crossing over, genetic material is exchanged between homologous chromosomes which enhances the genetic variation in organisms.

Keywords: Cell division, meiosis, crossing over, genetic variation

Learn more about:

• Cell division: brainly.com/question/5220873
• Meiosis: brainly.com/question/5220873
• Crossing over: brainly.com/question/5220873
• Genetic variation: brainly.com/question/5220873

Level: High school  

Subject: Biology

Chapter: Cell division  

Sub-topic: Meiosis  

Answer 2

Meiosis is important for organisms since it allows for genetic variation among organisms.

Further Explanation:

Mitosis and meiosis are two different types of cell division. Mitosis produces two daughter cells which are identical to each other. While in meiosis “four haploid” daughter cells are produced. It is a highly systematized cell division process as the spore or gamete produce must comprise one member of each homologous pair of the chromosomes. The crossing over results in genetic exchange between the non-sister chromatids of “homologous chromosomes”. Meiosis plays a significant role during the alternation of generation in plants and acts as a bridge between the sporophyte stage and gametophyte stage. During meiosis cell division, haploid gametes or spores are produced whereas mitosis produces daughter cells which are genetically similar to each other. During meiosis the pairing of homologous chromosomes occurs by synapsis which separate during anaphase.

Learn More:

1. Learn more about meiosis brainly.com/question/1600165
2. Learn more about the process of molecular diffusion in a cell brainly.com/question/1600165
3. Learn more about human sperm and egg cell brainly.com/question/1626319

Answer Details:

Grade: High School

Subject: Biology

Chapter: Mitosis and Meiosis

Keywords:

Mitosis, meiosis, homologous pair, haploid, gametes, spores, four, synapsis, gametes, daughter cell, plant, cell division, crossing over.