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Can someone explain Meiosis 1 and II to me like I'm a baby? (i really don't understand it!) 15 pts

topjm [15]

Answer:

Meiosis 1 is when the homologous chromosomes separate and crossing over occurs. Meiosis 2 is when the sister chromatids seperate and produces 4 haploid daughter cells.

Explanation:

The phases of Meiosis 1 are, Interphase, Prophase 1, Metaphase 1, Anaphase 1, Telophase 1 & Cytokinesis.

Interphase: DNA is replicated and organic material is synthesized.

Prophase 1: Chromosomes pair up

Metaphase 1: Crossing Over occurs and chromosomes line up at the equator.

Anaphase 1: Chromosomes pull apart

Telophase 1 & Cytokinesis: Cell pinches to both sides and begins to pull apart as the cytoplasm is copied.

The phases of Meiosis 2 are, Prophase 2, Metaphase 2, Anaphase 2, Telophase 2 & Cytokinesis.

Prophase 2: Two daughter cells are formed

Metaphase 2: Chromosomes line up at equator of both cells.

Anaphase 2: Sister chromatids are pulled apart in each cell.

Telophase 2 & Cytokinesis: The cells pinch to both sides as the cytoplasm is replicated and four granddaughter cells are formed.

3 0

3 years ago

A client who had an incision and drainage of an oral abscess is to be discharged. which clinical finding, if it should occur, sh

Zolol [24]

After a client who had an incision and drainage of an oral abscess has been discharged, a clinical finding that should be of concern and should prompt the client to report to the healthcare provider is if there is pain with swelling after one week; a painful swelling filled with pus may indicate the recurrent oral abscess.

5 0

3 years ago

Genetic variation among humans is relatively small when compared to other species. Where in the human genome does most of the di

worty [1.4K]

The genetic variations seen in and between populations are known as human genetic variation.

Humans differ genetically from one another. Due to developmental mutations and gene copy-number variation, even monozygotic twins, who arise from a single zygote, may differ genetically. Techniques like genetic fingerprinting rely on individual differences, even between closely related people.

There are 324 million identified variations from sequenced human genomes as of 2017.

A person's genome typically differs from the reference genome by 20 million base pairs, or 0.6% of the total 3.2 billion base pairs, as of 2015.

In contrast to other species, humans are genetically uniform. While a limited number of genetic variations are found more commonly in particular geographic regions or in individuals with ancestry from those places, this variance accounts for the majority of genetic variation.

Genetic variation between populations occurs for at least three reasons. If an allele offers a competitive advantage, natural selection may endow people with an adaptive advantage in a particular environment.

Learn more about genetic variations is visit here;

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5 0

2 years ago

Identify an appropriate control that the researchers should use when they study the growth and photosynthetic ability of the pla

natka813 [3]

The plant should remain the same

5 0

3 years ago

How is Contribution Margin Dollars Calculated

Law Incorporation [45]