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
andrey2020 [161]
3 years ago
10

Suppose you discover a new form of a nucleic acid, XNA. Like DNA, it is double-stranded. You are interested in its mode of repli

cation, so you label parental XNA and then allow that XNA to replicate in the presence of unlabeled bases. After one round of replication, you find the parental XNA intact with both strands labeled and the new XNA with both strands unlabeled. What can you infer?
A) Unlike DNA, XNA replicates conservatively.
B) Like DNA, XNA replicates conservatively.
C) Like DNA, XNA replicates semiconservatively.
D) Unlike DNA, XNA replicates dispersively.
E) Unlike DNA, XNA replicates semiconservatively.
Biology
1 answer:
victus00 [196]3 years ago
8 0

Answer:

A: Unlike DNA, XNA replicates conservatively

Explanation:

<em>The replication of the DNA is </em><em>semi conservative.</em><em> This means that newly replicated double helix DNAs usually consist of one parental strands and one newly synthesized strands. The parental DNA unwinds and each strand serves as template for the synthesis of complementary strands.</em>

In the case of XNA, the two strands of parental XNA were found intact, meaning that the newly produced XNA consist of two newly synthesized strands. This thus means that the replication process is conservative.

Hence, unlike DNA replication that is semi conservative, XNA replication is conservative.

You might be interested in
Before there were national nominating conventions, presidential nominees were selected by
djyliett [7]
It was through the practice of the legislative caucus. 
7 0
2 years ago
Plants us carbon dioxide for what
Brilliant_brown [7]
Plants use carbon dioxide to breathe basically and then that converts to photosynthesis witch gives them nutrients. And then they release oxygen which humans consume to breathe in then we release carbon dioxide and the circle goes on and on
7 0
2 years ago
Where do bile and pancreatic enzymes enter the small intestine?
BartSMP [9]

Answer:

The correct answer is duodenum

Explanation:

Bile is a digestive enzyme that is secreted by the liver which is temporarily stored in the gall bladder and pancreatic enzyme is released by the pancreas. The bile is secreted to the small intestine through the common bile duct and the pancreatic duct joins the common bile duct just before ampulla of Vater which opens in the first intestinal portion which is duodenum.

So bile and pancreatic enzymes enters the duodenum region of the small intestine and after getting in the small intestine it digests the complex macromolecules into simpler and smaller form which can be absorbed through the intestinal epithelium.  

7 0
3 years ago
What does nucles do as a function in a cell?
Jet001 [13]
Nucleus has genetic material (DNA) inside it, so it commands the cell about how it has to be function......
4 0
2 years ago
Suca
Kazeer [188]
I’m pretty sure it’s water vapor so try that
5 0
3 years ago
Other questions:
  • Suppose an experimenter moves DNA sequences within a prokaryotic genome and puts the operator to the far end of the operon, past
    15·1 answer
  • ion-linked gated channels are receptor proteins through which ions pass. A cell biologist has blocked these channels in a lab ra
    8·1 answer
  • What accounts for the uniform diameter of the DNA molecule? A.The two sides of the DNA molecule are held together by hydrogen bo
    8·1 answer
  • Which fossils would you say came before Tortugis ancientis?
    9·1 answer
  • What connective tissue cells produce antibodies?
    15·1 answer
  • experimental evidence shows that the process of glycolysis is present and virtually identical in organisms from all three domain
    10·1 answer
  • Which of the following statements about enzyme function is true? A. Enzyme function is independent of physical and chemical envi
    8·1 answer
  • Which of the following is an example of hydrolysis?
    7·1 answer
  • HELP PLEASEEEE ASAP.
    8·1 answer
  • Fireflies make their own light. The light they give off looks green. The spectrum of their light is shown. Describe how you woul
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!