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
o-na [289]
2 years ago
11

I need help,, this should help move my grade up and i currently have an f:)

Biology
1 answer:
emmasim [6.3K]2 years ago
7 0

Answer:

first question is c.

Explanation:

You might be interested in
. What causes a hurricane to form <br><br><br> will give brainliest to smartest answer
Archy [21]

Answer:

For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.

Explanation:

In short pressure zones over warm ocean

8 0
2 years ago
Read 2 more answers
The mantle is always solid. True or false?
zubka84 [21]

Answer:

It is predominantly solid but in geological time it behaved as a viscous fluid.

Explanation:

7 0
2 years ago
Read 2 more answers
When the sun depletes its current core fuel, it will become a _____.
erica [24]
I think the answer would be "A"
4 0
3 years ago
Read 2 more answers
DNA Polymerase helps copy a DNA molecule during the process of what?
PtichkaEL [24]
The DNA polymerases are enzymes that create DNA molecules by assembling nucleotides, the building blocks of DNA. These enzymes are essential to DNA replication and usually work in pairs to create two identical DNA strands from one original DNA molecule. During this process, DNA polymerase “reads” the existing DNA strands to create two new strands that match the existing ones.

Every time a cell divides, DNA polymerase is required to help duplicate the cell’s DNA, so that a copy of the original DNA molecule can be passed to each of the daughter cells. In this way, genetic information is transmitted from generation to generation.

Before replication can take place, an enzyme called helicase unwinds the DNA molecule from its tightly woven form. This opens up or “unzips” the double stranded DNA to give two single strands of DNA that can be used as templates for replication.

DNA polymerase adds new free nucleotides to the 3’ end of the newly-forming strand, elongating it in a 5’ to 3’ direction. However, DNA polymerase cannot begin the formation of this new chain on its own and can only add nucleotides to a pre-existing 3'-OH group. A primer is therefore needed, at which nucleotides can be added. Primers are usually composed of RNA and DNA bases and the first two bases are always RNA. These primers are made by another enzyme called primase.

Although the function of DNA polymerase is highly accurate, a mistake is made for about one in every billion base pairs copied. The DNA is therefore “proofread” by DNA polymerase after it has been copied so that misplaced base pairs can be corrected. This preserves the integrity of the original DNA strand that is passed onto the daughter cells.



A surface representation of human DNA polymerase β (Pol β), a central enzyme in the base excision repair (BER) pathway. Image Credit: niehs.nih.gov

Structure of DNA polymerase

The structure of DNA polymerase is highly conserved, meaning their catalytic subunits vary very little from one species to another, irrespective of how their domains are structured. This highly conserved structure usually indicates that the cellular functions they perform are crucial and irreplaceable and therefore require rigid maintenance to ensure their evolutionary advantage.

7 0
3 years ago
What is the developmental reason that hCG is a good indicator of pregnancy
Zina [86]
Hcg secreted by placenta not the fastest method to detect pregnancy nor it is specific
7 0
3 years ago
Other questions:
  • Which mineral helps hold calcium to the teeth making them more resistant to decay
    7·1 answer
  • Identical twins who have separate placentas are somewhat less similar than identical twins who share a placenta. This best illus
    14·1 answer
  • WILL MARK BRAINLIEST!
    9·1 answer
  • Which of the following molecules do you think would make good antigens for recognizing an extracellular pathogen? Write a brief
    14·1 answer
  • Which part of the call membrane identifies the call type
    6·1 answer
  • How does the mitochondria lysosomes and golgi apparatus work together
    8·1 answer
  • What happens to a cell when it becomes cancerous ?
    7·2 answers
  • A mass of hyphae makes up the body of a fungus, which is<br> called the
    14·1 answer
  • How do you think the first cell came into existence? (using your own words.) (2 sentences)
    7·2 answers
  • Can someone please explain it ?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!