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vichka [17]
3 years ago
12

A segment of a gene contains 27 nucleotides, none of which include stop or start codons. How many amino acids does this segment

code for?
Group of answer choices

9 amino acids

81 amino acids

27 amino acids

3 amino acids
Biology
1 answer:
blondinia [14]3 years ago
7 0

If none of the nucleotides includes stop or start codons when a segment of a gene contains 27 nucleotides there will be 81 amino acids in this segment code.

Answer: Option B

<u>Explanation:</u>

Codon is a nucleotides within messenger RNA. A stop or start codon is a nucleotide triplet which signals protein termination. Start codons initiate to start translation while the stop codon initiates termination.

The genetic codes are the sequence for nucleotide that codes for amino acids. A segment containing 27 nucleotides multiplied by 3 gives 81 amino acids. Every nucleotide in an mRNA are read “three at a time”. Hence this segment codes for 81 amino acids.  

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Plants use carbohydrates to build things such as cellulose. How do plants acquire these building blocks to build mass?
AlekseyPX

Answer:

Photosynthetic process

Explanation:

Cellulose, a tough, fibrous and water-insoluble polysaccharide in the cell walls of plants. It is the most abundant organic macromolecule on Earth and also the main component of a plants structure, conferring rigidity on the plants' cells.

Cellulose chains are arranged in microfibrils or bundles of polysaccharides arranged in fibrils which in turn make up the plant cell wall.

All plants are made up of polysaccharides, a very large sugar molecule made of hundreds or thousands of single sugar units (monosaccharide). Cellulose is composed of a long chain of at least 500 glucose molecules joined together by B-1,4- linkages.

Green plants create this simple sugar molecules (glucose) on their own through the process of photosynthesis. Photosynthesis is the chemical combination or fixation of C02 and water by the utilization of energy from the absorption of visible light. This glucose produced is a building carbohydrate that combines with other sugars to form the plant structure (as they make up part of cellulose) and store energy.

4 0
3 years ago
Read 2 more answers
What is the genotype of a heterozygous person with a cleft chin?
antiseptic1488 [7]

Answer:

Cc

Explanation:

A cleft chin is an example of a trait that is controlled by genetics. A cleft chin is when there is a dimple in the chin which arises when the two sides of the jaw don’t completely fuse together. Famous people with cleft chins are Henry Cavill, John Travolta and Niall Horan.

A cleft chin is generally thought to be a dominant trait. That means, if an individual carries one copy of the cleft chin gene (heterozygous), then they will display the trait.

There are three options: an individual can be homozygous dominant (CC), homozygous recessive (cc) or heterozygous (Cc). A heterozygous person will always have 2 different alleles (for any trait, not just cleft chin). In this case, a heterozygous person will have a cleft chin, because it is dominant. Therefore, an heterozygous person with a cleft chin will be Cc

Remember, the letter doesn't matter - they could also be denoted as Bb, Qq, Rr, Ff. The letter is arbitrary.

6 0
3 years ago
What is the function of the macromolecule nucleotide?
Aleks04 [339]

Answer:

I believe that the answer is D.

Explanation:

A) is wrong

B) is carbohydrates

C) is lipids

D) is nucleic acids and the monomer of nucleic acids are nucleotides.

4 0
2 years ago
7. A cell membrane has two layers of molecules. These molecules are made of a phosphorus-
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Answer: a they are made up of fatty acids

5 0
2 years ago
In a Biology 101 lab, Alex and Samuel were given unknown cells. Through a variety of staining and microscopy techniques, they de
Inessa05 [86]

Answer:

They concluded that the cell is eukaryotic cell.

Explanation:

Prokaryotic and eukaryotic cells are the two types of organisms. Prokaryotic organisms are the organisms made up of prokaryotic cells and eukaryotic organisms are made up of eukaryotic cells.  

Prokaryotic cells do not have a nucleus and other membrane-bound organelle and eukaryotic cells have a nucleus and other membrane-bound organelles like mitochondria.  

Therefore if the cell has mitochondria they must conclude that the cell is eukaryotic because the prokaryotic cell does not have mitochondria as it is a membrane-bound organelle.

6 0
3 years ago
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