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
matrenka [14]
3 years ago
14

In a human zygote, how many diploid combinations of parental chromosomes are possible?

Biology
1 answer:
Phantasy [73]3 years ago
8 0
There are 2 to the 23 power for each parent
therefore there are 2 raised to the 46 power possible combinations
You might be interested in
100 points! What are exhibit entries, and how do I write them?
likoan [24]

Answer:

Exhibit entries are the fact that after you go see a museum or something you have to fill out a form. You write them by getting them usually from a worker.

Explanation:

3 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
BIG POINTS IF YOU DO THESE!!!
Marat540 [252]

Answer:

PART 2-

6-Tt

7-Hh

8-Cc

PART 3-

9- widows peak= Pp,PP       no widows peak= pp

10- No hitchhikers thumb= Hh, HH       hitchhikers thumb= hh

PART 4-

11- look at the green punnet square picture 50%  are round

12- and I don't know this one sorry :(

Explanation:

hope this helps

4 0
3 years ago
Which of the following is not associated with the stomach?
natita [175]
C. <span>The duodenum is a separate anatomic structure. It is the first part of the small intestine after the stomach. </span>
6 0
3 years ago
Read 2 more answers
Which describes the habitat of a frog?
brilliants [131]
Marshes and ponds is the correct answer
5 0
3 years ago
Read 2 more answers
Other questions:
  • Which molecule listed below contains the most carbon atoms
    5·1 answer
  • . Meditation and hypnosis are similar in that they both involve:. a. delta brain wave activity. . b. a stream of mental activity
    14·1 answer
  • What substance can be formed through the ionic bonding of an anion and a cation
    8·2 answers
  • Give one example of a question that science would not be able to test. Then, explain how it could be changed into a testable que
    9·1 answer
  • A. DNA replicates<br> B. The nucleus is divided into two new nuclei<br> C. The organelles divide
    14·1 answer
  • Which of the following must exist in a population before natural selection can act upon that population? A. genetic variation am
    6·1 answer
  • How do mutations cause genetic variation?
    7·2 answers
  • Due today pls help me
    11·2 answers
  • HELLP ASAP
    12·2 answers
  • Which effect can an ocean have on the climate?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!