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3 years ago

Which of the following statements about the genetic code is true?

Biology

1 answer:

Nezavi [6.7K]3 years ago

8 0

Answer:

c. Some codons specify the same amino acid.

Explanation:

Codons are triplets of nucleotides in mRNA that is used for the protein synthesis (translation). A codon specifies a single amino acid, but there are exceptions. tRNA molecule contain anticodons, triplets of nucleotides that are complementary to codons. So, during the translation, tRNA carries the amino acid, that corresponds to the codon in mRNA.

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Communication between neurons occurs from contact between the two neurons. when the intensity of the action potential increases

Kitty [74]

Answer:

The correct answer is - when action potentials trigger the release of neurotransmitters.

Explanation:

Communication between neurons takes place by signaling that can be either chemical signaling or electrical signals. Communication between neurons occurs at very small gaps known as synapses.

These synapses have two specialized cells that help two neurons communicate by one to another to allow for chemical transmission. The chemical that isreleased due to the stimulation of the action potential in order to communicate the neurons are known as neurotransmitters that allow for transmission.

8 0

3 years ago

How many different offspring genotypes are expected in a trihybrid cross between parents heterozygous for all three traits when

aalyn [17]

Answer:

27 genotypes and 8 phenotypes

Explanation:

Supposing that the genotypes of both of the parents are AaBbDd (A, B and D are dominant over a, b and d). After completing the Punnett square, you can predict the following offspring:

I add an image where you can see all the 27 genotypes and frequencies.

Finally, all the 8 phenotypes with the following frequencies:

27/64 A-B-D-

9/64 A-B-dd

9/64 A-bbD-

9/64 aaB-D-

3/64 A-bbdd

3/64 aaB-dd

3/64 aabbD-

<u>1/64 aabbdd </u>

Total 64/64

Note: when a phenotype is A-, it means that it came from either genotype, AA or Aa. The same applies to B- (BB or Bb) and D- (DD or Dd)

3 0

2 years ago

Question 5

yan [13]

Answer:

nucleas

Explanation:

3 0

2 years ago

Cancer cells can travel through the blood or lymphatic vessels and form tumors at distant locations. What is this process called

Jlenok [28]

I believe that the process would be called Metastasis.

4 0

3 years ago

Haploid numbers of chromosomes are usually found in what part of an organism?

prohojiy [21]

Usually they are found in the sex cells. :)

4 0

3 years ago

Read 2 more answers