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Anna71 [15]
3 years ago
8

Which portion of the cell membrane is responsible for preventing unwanted materials from entering the cell?

Biology
1 answer:
kati45 [8]3 years ago
8 0
Lysosomes, dead organelles, waste products and other unwanted substances are removed through lysosomes
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Why would diabetes make a person feel tired? Be specific in your response.
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The following pedigree represents which type of inheritance? (hint: look at the number of individuals affected as well as the ge
Marina86 [1]

Answer:

<em>The correct option is A) Autosomal dominant</em>

Explanation:

To interpret the inheritance, let us look at the pattern shown in the pedigree. The normal allele is recessive whereas the abnormal allele is dominant. This type of pedigree can be analyzed affected fathers and mothers transmit the phenotype to both sons and daughters. Hungtinton's diseases is an example of autosomal dominant disorder.

6 0
4 years ago
Round (R) seed shape is dominant to wrinkled (r) seed shape in pea plants. If an RR plant is crossed with an rr plant, what is t
melamori03 [73]

Answer:

The correct answer is b. All round seeds

Explanation:

If an RR plant is crossed with an rr plant than all the phenotype will produce round seed and the frequency of the Round seed plant to wrinkled seed plant would be 4:0.

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                  r   Rr    Rr

                  r   Rr    Rr

So all the phenotypes will be heterozygous dominant for the round seed which means that all phenotypes will have a single dominant allele for round seed which is enough to express round seeds in the phenotypes.

4 0
3 years ago
Which statement is not true about glaciers?
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The answer is: They exists only in the Northern Hemisphere.

It is possible to find a glacier in other spots in the world.
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I am a polygon
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A equilateral triangle?
They don't have right angles, and all sides are the same.
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