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Slav-nsk [51]
3 years ago
6

What happens in a fertilisation of a plant​

Biology
1 answer:
romanna [79]3 years ago
6 0

Answer:

Fertilization occurs when one of the sperm cells fuses with the egg inside of an ovule. After fertilization occurs, each ovule develops into a seed.

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When humans breed cows for better meat, this is called
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This is called selective breeding
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The resulting pain and inflammation when pleural fluid is unable to prevent friction between opposing pleural surfaces is known
Effectus [21]

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The correct option is B.

Reason

            A brief technical explanation for each option is given below.

a. Asthma

                 It is lower respiratory disorder in which air passage way become narrow and swells, produce extra mucus which make difficulty in breathing, and trigger sneezing, wheezing and shortness of breath.

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d. COPD

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e. Emphysema

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6 0
3 years ago
The permeability of the plasma membrane is ​
Arada [10]

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Permeability of plasma membrane is the rate of passive diffusion molecules across the biomembrane.

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A typical human cell expresses only about 5% of its genes at any time. The expression of a gene can be regulated during any step
ANTONII [103]

Answer:

Enzymes

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The regulation of gene expression is the central dogma of life. It is a series or set of mechanisms in which genetic information in the DNA expresses in the form of RNA or protein. Cells give gene expression b different mechanisms as transcription, maturation of mRNA, and translation.

During these mechanisms, different gene-regulatory proteins are influenced. For example, a set of RNA polymerases that are proteins transcribe the DNA molecule during transcription. Transcription factors are also proteins that control the synthesis of proteins in the cell. These proteins are an enzyme that catalyse the gene regulation in the human cells.

3 0
4 years ago
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