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
MrRa [10]
3 years ago
11

Which of the following is the earliest step in transcription? A. RNA polymerase encounters a termination signal, and the DNA mol

ecule is released. B. Complementary RNA nucleotides are synthesized and added to the mRNA molecule. C. Introns are excised from the pre-mRNA strand. D. RNA polymerase binds to the promoter on the template strand of DNA.
Biology
1 answer:
OLga [1]3 years ago
6 0

Answer:

D. RNA polymerase binds to the promoter on the template strand of DNA.

Explanation:

Transcription is the process in which mRNA is formed from the DNA molecules. DNA is a double-stranded molecule but only one strand is used to code the RNA molecule and the strand which is used to code RNA is called the template strand.

RNA polymerase binds on the promoter regions which is present on the template strand and starts transcribing the strand. The complementary sequence is added to make the RNA strand. Therefore the correct answer is D.

You might be interested in
The cordilleran orogenies, from oldest to youngest, are ________ .
VARVARA [1.3K]
<span>Nevadan, Sevier, Laramide. </span>
7 0
3 years ago
DNA samples should be stored in an airtight containers to prevent contamination true or false
Aleksandr-060686 [28]

Answer: True

Explanation:

DNA is a biological evidence. It is a heredity material which is present in all organisms on earth. The DNA in humans can be taken as sample from nails, bones, blood, skin, hair and other sources.

The DNA samples can be taken so as to establish the identity of the culprit, victim or any one which is associated with crime.

The DNA evidence has applicability as a potent evidence in the court of law. Thus utmost care should be taken to preserve it's integrity until it is analysed and presented in the court of law.

Thus the DNA evidence should be collected and preserved in airtight containers so as to prevent the entry of airborne pathogens like bacteria, virus these can contaminate the sample evidence and can make the evidence not of any use.

 

7 0
4 years ago
4. When the difference in the electronegativity of 2 elements is small,
Juliette [100K]

Answer:

When the diffrence is small like between Oxygen and Carbon the electrons will be shared. When it is large like in Na and Cl the Cl will steal one electron.

Explanation:

6 0
3 years ago
Type A blood is not dominant over type B blood and vice versa. However, both of type A anmd B are dominat over tpye O blood. Wha
zhenek [66]

Answer: This mode of inheritance is known as Incomplete Dominance

Explanation:

Incomplete dominance occurs when a cross between two contrasting alleles (such as Type A and B) produces a heterozygous phenotype different from the two parents.

Thus, both Type A and B are dominant over Type O blood

7 0
3 years ago
In some animals, black fur (B) is dominant over white fur (b). What color fur
Mumz [18]
The animal would have black fur, because the black fur is dominant over the white fur.
3 0
3 years ago
Other questions:
  • A body of granite was found to underlie sandstone. pieces of sandstone were found in the granite. which is younger, the granite
    9·1 answer
  • The pouch of skin that contains the testes is the
    12·1 answer
  • What are the specialised features of a salivary gland cell?
    6·1 answer
  • Match the following:
    12·1 answer
  • (6-6÷3)^2-4×3÷2 can anyone help me
    11·2 answers
  • A farmer cut a branch from his favorite Richard fruit tree planted in the soil and eager to be a nutrient the farmers method of
    13·1 answer
  • The breakdown of food molecules, such as glucose in the absence of oxygen is called?
    7·2 answers
  • Why is an angioplasty an incorrect treatment for an aneurysm
    8·1 answer
  • Describe the three methods for harvesting stem cells, for each method, explain the benefits of the method and the ethical concer
    12·1 answer
  • Why is ETC considered an aerobic process?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!