1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Ne4ueva [31]
3 years ago
8

Why can the mrna strand made during transcription be thought of as a mirror image of the dna strand from which it was made?

Biology
2 answers:
Marta_Voda [28]3 years ago
8 0

Answer: The mRNA chain is complementry to the DNA molecule and yet it is not identical to it

Explanation:

Expression of a gene implies manufacturing its corresponding protein. It is a multilayered process and this multilayered process has two maib steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription. In the transcription process, the DNA of a gene serves as a template for complementary base-pairing, and an enzyme called RNA polymerase II catalyzes the formation of a pre-mRNA molecule, which is then processed and results in the formation of mature mRNA.

The resulting mRNA is a single-stranded copy of the gene, which next must be translated into a protein molecule. During translation, which is the second main step in gene expression, the mRNA is "read" according to the genetic code, which relates the DNA sequence to the amino acid sequence in proteins. Each group of three bases in mRNA comprises of a codon, and each codon specifies a particular amino acid. The mRNA sequence is thus used as a template to assemble in order the chain of amino acids that form a protein. This portion of mRNA is located in between the first nucleotide that is transcribed and the start codon (AUG) of the coding region, and it doesn't affect the sequence of amino acids in a protein.

weqwewe [10]3 years ago
3 0

Answer: because its sequence is complementary to that of the dna

Explanation:

You might be interested in
Water in all three states is still water Question 3 options: True False
Xelga [282]

Answer:

The awnser is false

Explanation:

In liquid form it is water but ounce the other forms start it will eithr turn to solid form ice or gas form vapor

6 0
3 years ago
The failure of the attempt to reintroduce clapper rails in California was an example of the _____.
Lemur [1.5K]

The correct answer is option D, difficulty of redesigning workable ecosystems

Reason -

The area that was redesigned into an ecosystem actually failed to attract the endangered species of clapper rails in California because of the following two reasons –

a) Failed attempt of restoration of Cord grass ( a tree which is a dominant tree in the nesting habitat of clapper rail) . Even if few such trees were there they could not grow to their full height and thus were incapable of providing adequate nesting cover

b) Due to the lack of predatory insect, some herbivore insect in the ecosystem attacked the green grasses thereby making the nesting inadequate.

7 0
3 years ago
How do warm ocean currents affect the weather?
umka21 [38]

Answer:

Increase the temperature

Explanation:

Warm ocean currents are directed movements of the sea water. Elements such as the wind can facilitate and carry their movement increasing the temperature of the environment.

5 0
3 years ago
How are a heterozygous and a homozygous individual different?
Sidana [21]

Answer:

Option (a).

Explanation:

Homozygotes individuals has the same genotype whereas the genotype of the heterozygotes are different. The homozygotes may refer the true or pure organism.

The gametes obatined from the homozygotes caaries the same gene. The gametes of the heterozygotes carries the different version of the gene. The dominant trait will express themselves in the heterozygotic condition.

Thus, the correct answer is option (a).

7 0
3 years ago
What are the type of germination in plant​
Pavlova-9 [17]

Answer: Hypogeal Germination and Epigeal Germination

Explanation: Facts

4 0
3 years ago
Other questions:
  • What does DNA stand for?
    7·2 answers
  • A remora hitching a ride on the shark is an example of which symbiotic relationship? A. Predator/prey B. Mutualism C. Parasitism
    9·1 answer
  • What phrase BEST describes a community?
    6·2 answers
  • On the electromagnetic spectrum, infrared light has a lower frequency than visible light, which has a lower frequency than ultra
    6·1 answer
  • What mediates the reduction of carbohydrates during the Calvin cycle?
    10·2 answers
  • PLEASE HELP!!! A small population of crocodiles lives in an isolated area the undergoes no changes for a long period. How will g
    13·2 answers
  • Help Fusion book pg 126 & 127.
    7·1 answer
  • is a collective human effort to comprehend, or better understand, the history of the natural world and how it works, through phy
    14·1 answer
  • What type of lenses were used for the first microscopes?
    7·1 answer
  • What is not necessary for an organism to survive?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!