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
miv72 [106K]
3 years ago
15

What would 2/3 of the Ozone layer being gone by 2065 mean for us?

Biology
1 answer:
monitta3 years ago
5 0

Answer:

D: all of the above

Explanation:

You might be interested in
PLEASE HELP
Reil [10]

Answer:

C is your answer

Explanation:

Both sexes have a X chromosome, the zygote must have at least one X.

6 0
3 years ago
Read 2 more answers
In the diagram below of a human skeleton, what is the name of the bone
hichkok12 [17]

Answer:

B. Sternum

Explanation:

The sternum (or breastbone) is a flat bone in the thorax's anterior area. It has a 'T' shape and is located in the center of the chest. The sternum, which is part of the bony thoracic wall, protects the internal thoracic viscera, such as the heart, lungs, and oesophagus.

Here is a picture from the internet.

7 0
2 years ago
Photosynthesis occurs both in plants and animals true or false
GrogVix [38]

Answer:

false!

Explanation:

it only occurs in plants <3

3 0
3 years ago
Cellular respiration and photosynthesis form the basis of the __________.
lys-0071 [83]
The answer is D. Carbon cycle
8 0
3 years ago
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
Other questions:
  • During the aerobic pathway of carbohydrate metabolism, _______.
    6·1 answer
  • 53:12
    12·1 answer
  • How the functions of organelles in animal cells and plant cells are different?
    11·1 answer
  • How does the cell cycle start off?
    5·2 answers
  • Which of these is an example of how the ocean influences climate?
    11·1 answer
  • What structure acts like the our skin monitoring what goes in and out of every single cell?
    10·1 answer
  • Which physical and behavioral characteristics do you think distinguished humans from other primates?
    15·2 answers
  • Below is a carrying capacity graph of a meerkat population in an African savanna. Meerkats are omnivores and eat a variety of or
    8·2 answers
  • 49. How is air drawn into the body?
    6·2 answers
  • classify the following characteristics and examples depending on what model of speciation is described.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!