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Alex777 [14]
3 years ago
8

Which process best matches speciation? A. Macroevolution B. Microevolution​

Biology
2 answers:
sergij07 [2.7K]3 years ago
8 0

Answer:

a

Explanation:

Masja [62]3 years ago
8 0

Answer:

B. Microevolution

Explanation:

Speciation: the formation of new and distinct species in the course of evolution.

Microevolution: refers to changes that occur within a single species or group or organisms

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Can mRNA coding for a protein destined to be embedded in the plasma membrane associate with rough ER prior to the initiation of
Debora [2.8K]

Answer:

mRNA must start membrane protein in the cytoplasm and, after that, continue it in the rough ER.

Explanation:

Protein synthesis is initiated when mRNA meets a free ribosome, the primary structure for protein synthesis. Ribosomes can be found in the r<em>ough endoplasmic reticulum</em> or floating in the cytosol. They read the mRNA code and add the correct amino acid using transference RNA to build the protein.

The <u>rough endoplasmic reticulum</u> is in charge of the synthesis and transport of the membrane proteins. It is also in charge of the latest protein modifications after transduction. Synthesis of membrane proteins <u>starts in the cytoplasm</u> with the production of a molecule portion known as a signal sequence. This portion leads the synthesizing protein and associated ribosome to a specific region in the Rough endoplasmic reticulum where it continues the protein building.

Membrane proteins are synthesized in the endoplasmic reticulum and <em>sent to the Golgi complex in vesicles</em>, where it happens the final association of carbohydrates with proteins. Finally, protein is transported <em>from the Golgi complex to its final destiny, the membrane. </em>

4 0
3 years ago
3. Explain how a mutation can occur.
lina2011 [118]

Answer:

Either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke.

6 0
3 years ago
Read 2 more answers
Which is the site of the light-dependent reactions of photosynthesis?
Darya [45]

Answer:

Thylakoids.

Explanation:

Thylakoids absorb light through light harvesting complexes.

6 0
3 years ago
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Explain how both genes, and the environment determine your risk of developing cancer. Please
solmaris [256]

Answer:

The phenotype is the result of the interaction between the genes (i.e., genotype) and environmental factors.

Explanation:

Cancer is a disease caused by abnormal expression of genes involved in the cell cycle, mitosis, DNA replication, etc. Moreover, the abnormal gene expression may be associated with environmental factors such as smoking, alcohol consumption, etc.

5 0
3 years ago
Uncontrolled cell growth would most likely be attributed to which of the following
liberstina [14]
Just think about cancer.. it's uncontrolled cell growth, so mutations in genes can cause cancer by accelerating cell division. As the cells contribute to grow they then develop as a tumor.
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2 years ago
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