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3 years ago

Why is meiosis not mitosis happening twice?

Biology

2 answers:

makkiz [27]3 years ago

7 0

The produce 2 difference cells

NeX [460]3 years ago

4 0

They produce two different cells, mitosis produces cells used for growth and repair and each cell is identical to the parent and each other and each contain 46 chromosomes..meiosis produces genetically different daughter cells and there are four cells produced, these cells each contain 23 chromosomes and the cells are used in reproduction

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A cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. Wh

vazorg [7]

<span>c. Metaphase

</span><span>The two identical daughter cells resulting from mitosis and cytokinesis are identical in the following ways:1. Mitosis occurs when the nucleus of the cell divides into two identical nuclei, each with the same type and number of chromosomes. The cell's DNA is duplicated during this phase. Sometimes the cell's DNA isn't copied properly resulting in cancer-type cells. 2. Cytokinesis is when the cytoplasm divides into two identical daughter cells. Each cell is genetically identical and both are a similar size. </span>

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4 years ago

What are the components needed for a full ecological community to be successful?

erica [24]

Answer:

Explanation:

A community structure is define by the diverse organism present and the various number of species.

A community requires both biotic and abiotic factor to form a good structure.

Base population is needed - this are the primary producer, that transfer energy to other organism in the environment. The produce their food themselves.

Consumers - consumers feeds on producers, herbivores animals feeds on producer/plant while carnivores feeds on herbivores. Energy is then transfer when they chemical reaction takes place via the food comes

Decomposer - They act on the dead and remains of plant and animal. They help release nutrient back into the soil. Example of decomposer is earth worm.

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3 years ago

Mention 2 reasons why goats do not brush their teeth but always their teeth is white

sukhopar [10]

Because they love it

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3 years ago

2) For a long time, algae were considered a part of the plant kingdom. Which statement best explains why most algae are now cons

Likurg_2 [28]

D. Algae do not have organs or specialized tissue. I think...

7 0

3 years ago

Cellular respiration map

nexus9112 [7]

Explanation:

Respiration in the mitochondria utilizes oxygen for the production of ATP in the Krebs’ or Citric acid cycle via the oxidization of pyruvate (through the process of glycolysis in the cytoplasm).

overall: C6H12O6 (glucose) + 6 O2 → 6 CO2 + 6 H2O + ≈38 ATP

Further Explanation:

In all eukaryotic cells, mitochondria are small cellular organelles bound by membranes, these make most of the chemical energy required for powering the biochemical reactions within the cell. This chemical energy is stored within the molecule ATP which is produced.

Oxidative phosphorylation follows; this is a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water...

Glycolysis: occurs in the cytoplasm. 2 molecules of ATP are used to cleave glucose into 2 pyruvates, 4 ATP and 2 electron carrying NADH molecules. (2 ATP are utilized for a net ATP of 2)

The Citric acid or Kreb's cycle: in the mitochondrial matrix- 6 molecules of CO2 are produced by combining oxygen and the carbon within pyruvate, 2 ATP oxygen molecules, 8 NADH and 2 FADH2.
The electron transport chain, ETC: in the inner mitochondrial membrane, 34 ATP, electrons combine with H+ split from 10 NADH, 4 FADH2, renewing the number of electron acceptors and 3 oxygen; this forms 6 H2O, 10 NAD+, 4 FAD.

Learn more about cellular life at brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

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4 years ago