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
Gemiola [76]
3 years ago
7

If mitotic cell division is the only way a particular species of single-celled organism can reproduce, it is most likely that

Biology
1 answer:
leva [86]3 years ago
4 0
If mitotic cell division is the only way a particular species of single-celled organism can reproduce, it is most likely that the rate of evolution in this species is slower than in one that reproduces sexually. This is asexual reproduction, which causes mutations in a population to accumulate and combine more slowly than sexual reproduction in a cell line, as the mutations would have to arise multiple times in one line, rather than a few separate times and then be allowed to combine sexually for the descendants to have those traits. 
You might be interested in
how is the endoplasmic reticulum related to Golgi Body? Best answer w/ clear and detailed explanation gets a brainliest.
Nostrana [21]
Proteins are made by ribosomes and then folded into their correct shape inside the endoplasmic reticulum. These proteins are then taken to the Golgi apparatus, or body, to be modified and then placed into little sacs called vesicles to transport the proteins. The two organelles are related in how they are both involved in the assembly and transportation of proteins.
6 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
Different between algae and fungi​
Mrac [35]

Answer:

algae are autotrophs, and fungi are heterotrophs. algae contain photosynthetic pigments. fungi are capable of digesting non-living, organic material, and also absorbs simple nutrients by the fungal hyphae

4 0
3 years ago
Arrange the steps in order to describe what happens to aliquid when it is heated
Mila [183]

Answer:

(1).The liquid gains thermal energy(2).The space between the liquid particles

increases(3).The particles of liquid move faster.(4).The liquid changes to a gas

Explanation:

7 0
3 years ago
What is the mechanism that causes the continents to move
dimulka [17.4K]

Answer:

It's All About the Plates

Heat from the Earth's interior causes this motion to happen via convection currents in the mantle. Over a period of millions of years, this slow motion caused the single supercontinent to split into the seven continents you see today

3 0
3 years ago
Read 2 more answers
Other questions:
  • In most of the body, the arteries carry oxygenated blood and the veins carry deoxygenated blood. The exception to this pattern i
    12·1 answer
  • When NaCl is added to water, its bond will break. If C6H12O6 (glucose) is added to water, its bonds will not break.
    11·1 answer
  • A. Mutualism<br>B.Commensalism<br>C.Parasitism<br>D.Predation​
    9·1 answer
  • 1.Where should Species C be placed on the tree?
    8·2 answers
  • Whats the flow of energy to killer whales in this image
    5·2 answers
  • Effect of different amounts of sunlight on plants​
    9·2 answers
  • Which of the following does not describe enzymes?
    13·2 answers
  • In three to five sentences, describe how a diagram of Earth’s water cycle demonstrates interactions among the biosphere, the lit
    7·1 answer
  • A double-blind, randomized study is being used to test the effectiveness of a new drug that targets the multi-drug resistant bac
    15·1 answer
  • There are five species of the Texas state flower, the bluebonnet. Each flower is found in a different region of Texas and has sl
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!