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alexdok [17]
2 years ago
13

Which of the following options best depicts the flow of information when a gene directs the synthesis of a cellular component? A

) RNA → DNA → RNA → protein B) DNA → RNA → protein C) protein → RNA → DNA D) DNA → amino acid → RNA → protein E) DNA → tRNA → mRNA → protein
Biology
1 answer:
tangare [24]2 years ago
6 0

Answer:

B) DNA → RNA → protein

Explanation:

  • Gene directs the synthesis of a cellular component through what is called gene expression.
  • During gene expression, information from the DNA is used to synthesis proteins, through the process of transcription followed by translation.
  • Transcription is the process that involves use of information carried by DNA to generate messenger RNA, in the nucleus of a cell. Then translation which uses the information carried by the mRNA to generate proteins in the organelles known as ribosomes.
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A science class is planning an investigation about gravity and objects on Earth. In three to four sentences, explain the steps t
Nitella [24]

Answer:

Since gravitational force is inversely proportional to the square of the separation distance between the two interacting objects, more separation distance will result in weaker gravitational forces. So as two objects are separated from each other, the force of gravitational attraction between them also decreases.

Explanation:

hope it helps but i can tell your in 5th grade <3

9 0
1 year ago
Which of the following statement(s) is/are TRUE about Red Blood Cells (RBCs)? a) A normal RBC has a nucleus RBCs' production is
olga_2 [115]

Answer:

RBCs' production is controlled by erythropoietin.

Mature RBCs are released into the bloodstream after approximately seven days RBCs are produced in the bone marrow

Explanation:

The hormone erythropoietin is produced and released in the bloodstream by peritubular interstitial cells of kidneys. The function of erythropoietin is to increase the number of the precursors of red blood cells and thereby to stimulate the production of red blood cells in the bone marrow. When the oxygen supply to body cells is reduced, the hormone erythropoietin stimulates the development of proerythroblasts into reticulocytes and thereby increases the RBC production.

RBCs are produced by the process of erythropoiesis and take about seven days to become mature and to be released in circulation to serve the function of oxygen delivery. The maturation of RBCs also includes the loss of most of the organelles such as the nucleus and mitochondria to accommodate hemoglobin protein. The life span of circulating RBCs is about 100-120 days.

4 0
1 year ago
In one row in the table, the data for the three trials is inconsistent. Which table cell contains data that are inconsistent for
salantis [7]

Answer: A

Explanation:

The cell for trial 2 with a lot of water. Trust me

6 0
1 year ago
Cellular processes are carried out by many different types of molecules, mostly proteins. The function of each protein molecule
Vitek1552 [10]

Answer:

option A

Explanation:

The protein specific sequence also known as the primary sequence is determined by the sequence of its amino acids linked together by peptide bonds. The sequences of amino acids determine the proteins that will eventually be synthesized. This proteins becomes functional when correct folding pattern/ native conformation of the protein occurs which determines the shape of the proteins. peptide bonds hold the amino acid sequences together, hydrogen bonds involving components of the peptide bonds allow for the existence of the secondary structure either the alpha helix or the beta pleated sheets and then disulphide bonds and other type of bonds helps in the folding of the protein to become a functional protein.

3 0
1 year ago
Assume that in cattle a spotted coat is dominant to an even coat, short horns are dominant to long horns, and the traits for coa
kow [346]

Answer:

C. 1/4

Explanation:

Let's assume that the allele for the spotted coat is "S" and the one for the even coat is "s". The allele "L" gives short horns while the recessive allele "l" imparts long horns. The genotype of the cattle heterozygous for both traits would be SsLl. A cross between two heterozygous cattle would produce progeny in following phenotype ratio=

9 spotted coat and short horns: 3 even coat and short horns: 3 spotted coat and long horns: 1 even coat and long horns.

Therefore, the proportion of the progeny with long horns = 4/16= 1/4

8 0
2 years ago
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