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
Pani-rosa [81]
3 years ago
15

Which numbered arrow represents the promoter for RNA II. RNA II serves as the primer for DNA synthesis for plasmid replication.

(The two fat arrows, blue (number 1) and red (number 4), represent promoters.).
a. 3.
b. 4.
c. 1.
d. 2.
Biology
1 answer:
Shalnov [3]3 years ago
5 0

Answer:

C

Explanation:

Arrow 1 represents the promoter for RNA II.

You might be interested in
Why are land resources beneficial?
KatRina [158]
They are beneficial because humans not only live but also perform all economic activities on land.
4 0
3 years ago
The diagram shows a model of an animal cell. Explain how you'd modify the model to show the structures in a
In-s [12.5K]
Hi where’s the diagram?
6 0
3 years ago
A group of similar organism that can breed and produce fertile offspring
Arisa [49]

Only animals in the same <u>species</u> can always breed and have fertile offspring.

Although animals in the same genus<em> can </em>breed, their offspring are usually infertile.

5 0
3 years ago
1.A scientist wants to prevent a culture of live cells from producing a particular protein. Which of the following will the scie
SIZIF [17.4K]

1. Answer:   A

Explanation: For a cell to form proteins, the specific types of proteins are coded for by the genes in DNA (found in the chromosomes of the nucleus). To produce proteins, the genes are first transcribed by RNA polymerase to form messenger-RNA. The mRNA is then translated into proteins by ribosomes in the cytoplasm of the cell.

2. Answer: B

Explanation: Translation of genes into proteins is dependent on the sequence of nucleotides. They are translated in sequences of 3 nucleotides known  as codons. Therefore adding a nucleotide on a piece of DNA causes what is referred to as a frame-shift mutation. The 3 sequences (of codons) is interrupted and shifted by one nucleotide. Therefore, the codons change and the amino acids translated will also change.

3. Answer: A

Expanation: Producers are significant in a food chain because they incorporate the energy of the sun into the food chain. This is why they are at the base of the food chain and have the largest biomass. They are consumed by primary consumers which are consumed by secondary consumers which are consumed by tertiary consumers and so on.  

4. Answer: D

Explanation: Plants are consumed by herbivores. Therefore, a decrease in plant population due to drought was resulted to decrease in herbivore population. This is due to stiff competition by the herbivores for the scarce plant population. Carnivores consume herbivores. Due to a decrease in the herbivore population, then the carnivore population would also decrease.

5. Answer: A

Explanation: Burning of fossil fuels emits carbon dioxide gas which is a greenhouse gas. Greenhouse gas traps infrared wavelength of lights hence warming up the atmosphere, causing global warming. Reduction  in use of fossil fuels will hence alleviate an increase in global temperature hence protect coral in the oceans from bleaching.  

4 0
3 years ago
If the na+ voltage-gated channels in a muscle cell open, what will be the result?
sammy [17]
If the Na+ voltage-gated channels in a muscle cell open, the Na (sodium) ions rush inside the muscle cell and makes the cell more positive as Na ions carry positive charge on it. Due to the entry of positively charged ions inside the cell, the cell becomes less negative and more positive. This is called depolarization of cell.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which organ synthesizes both urea and bile
    13·2 answers
  • The autonomic nervous system is also known as the __________ nervous system because it involves involuntary actions in the smoot
    10·1 answer
  • Which of these shows the correct pathway through the heart's four chambers after it enters from the vena cava?
    14·2 answers
  • How are endocrine system and nervous system similar?
    12·1 answer
  • A plant has the genotype pp. The p can be considered ___________a trait
    11·2 answers
  • What are the roles of allolactose in the lac operon and tryptophan in the trp operon?
    12·1 answer
  • What can cause the regional or local extinction of species, or shifts to
    8·1 answer
  • Which statement describes how to appropriately handle live earthworms in a lab investigation?
    5·2 answers
  • Fermentation takes place with the help of __________ <br><br> A bacteria <br> B Yeast
    8·1 answer
  • What is the answer to the question?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!