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Vsevolod [243]
3 years ago
13

Describe the structure and function of the nucleus and briefly explain how the nucleus controls protein synthesis in the cytopla

sm.
Biology
1 answer:
gulaghasi [49]3 years ago
8 0
The nucleus is the center of our cells. it contains our chromosomes and genetic information the produces life.
You might be interested in
4: Units of inheritance known as genes exist in pairs.
Bas_tet [7]

Answer:

4. a

5. a

6. a

7. a

8. a

9. a

10. True

Explanation:

4. Units of inheritance in living organisms are known as genes. These genes exist in pairs in all organisms and a copy of each gene is passed down to the offspring during reproduction.

Correct option: a

5. Assuming the dominance of allele A over allele a:

                AA    x    aa

          Aa    Aa    Aa    Aa

All the offspring will appear tall since the effects of allele a is masked by allele A.

Correct option: a

6. From the cross in (5) above, the genotypic ratio of the offspring is 100% Aa.

Correct option: a

7. Alternate forms of genes in living organisms are known as alleles. A copy of the alleles is usually passed down to the offspring during the process of reproduction.

Correct option: a

8. Phenotypes are the physical appearance of organisms. They are physical interpretation of genes.

Correct option: a

9. The law of segregation was postulated by Gregor Mendel. It states that gene pairs segregate during the process of meiosis and then randomly unite during the process of fertilization.

Correct option: a

10 Heterozygous organisms have two different alleles for the same genes. For genes that obey Mendelian laws, heterozygous condition is characterized by one dominant and one recessive alleles.

7 0
3 years ago
What specific spinal nerve branch controls the movement of rectus abdominis
CaHeK987 [17]

Answer:

The correct answer will be-ventral ramus

Explanation:

Rectus abdominis is a skeletal muscle found in the front part of the body which begins from the sternum and ends at the pubic zone.

Rectus abdominis is also known as "Abs" which viewed externally appears to be six, eight or ten in number.

These muscles are innervated by the thoracoabdominal nerves which carry and transmit signals to CNS and to the muscles back. The main spinal nerve which controls the movement of Abs is known as the "ventral ramus".

Thus, ventral ramus is the correct answer.

7 0
3 years ago
True or false?
Blababa [14]

Answer:

False

Explanation:

the object will float if the force of water (buoyancy )is greater than the objectives weight

3 0
3 years ago
Is there a mammal that lays eggs
Bess [88]
<span>Yes, there are mammals that lay eggs instead of giving birth to a live young. These mammals are called Monotremes. One best example to this is the platypus and echidnas. Platypus, which is also known as the duck-billed platypus, is a semiaquatic egg laying mammal. Echidnas on the other hand are also called as spiny eaters. Echidna and platypus are only the surviving members of the Tachyglosside. And are the sole extant egg laying mammal</span>


8 0
2 years ago
Read 2 more answers
What characteristic of viruses distinguishes them from cells? They lack an independent metabolism. Their traits do not evolve in
Naya [18.7K]

Answer:

The correct answer is "They lack an independent metabolism"

Explanation:

Viruses are usually active/alive in a living environment and become inactive in non-living environment; these is because they rely on the metabolic activities of the invaded living environment/cell. This property is a sharp contrast to normal living cells that are able to metabolize different substances independently using several organelles.

4 0
2 years ago
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