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
prohojiy [21]
3 years ago
6

A scientist investigated DNA replication in two groups of cells, labeled A and B. She injected radioactively labeled nucleotides

into cells of each group and allowed DNA replication to begin. When replication was halfway completed, she injected a drug into the cells to stop replication. She then examined the cells to determine the distribution of the newly-synthesized DNA. She found each cell of group A had many segments of new DNA in its nucleus, while each cell of group B had a single segment of new DNA in its cytoplasm.
What can the researcher conclude about the cells?

A.
Group A cells are prokaryotic because they must have many origins of replication.
B.
The cells in group B are prokaryotic because they replicate their DNA in the cytoplasm.
C.
Group B cells are eukaryotic because they must have a single origin of replication.
D.
The cells in group A are eukaryotic because they replicate their DNA in the cytoplasm or nucleus.
Biology
1 answer:
victus00 [196]3 years ago
4 0

Answer:d

Explanation:step by step explanation

You might be interested in
Dna sequencing suggests that among the green algae, the __________ are most closely related to land plants.
makkiz [27]

DNA sequencing suggests that among the green algae, the Stonewort are most closely related to land plants.

<h3>What is DNA Sequencing ?</h3>

DNA Sequencing is a technique to determine the bases, nucleic acid sequence in the DNA. It is important to know the functions of genes, coding and non-coding part of proteins, identify the diseases, effectiveness of drug delivery etc.

<h3>What is Land plants and Stonewort ?</h3>

Stonewort is commonly known as Chara . It is a freshwater green algae which comes from the Charophyta division. Fossils of Charophytes shows that Stonewort is a type of algae which is 470 million years old.

Thus from the above conclusion we can say that DNA sequencing suggests that among the green algae, the Stonewort are most closely related to land plants.

To know more about the Stonewort please click here :

brainly.com/question/8695285

#SPJ4

5 0
1 year ago
An insect eats a leaf.     Explain how the insect depends on the sun for energy.
Lelu [443]
The leaf needs the sun to grow and gain energy. the insect then eats the leaf and gets its nutrition and energy. 
hope this helps you
:)
7 0
4 years ago
Read 2 more answers
(WORTH 30 POINTS!!!) Choose the answer that best describes the geologic process that contributes to the formation of fault-block
lukranit [14]

B) The Earth's crust is pulled apart creating deep folds and then pushed together generating steep scarps to create fault-block mountains

7 0
3 years ago
1- What consist of Nitrogen bases, phosphate groups, and carbon rings.
polet [3.4K]
1 is nucleic acids and 2 is nucleic acids
6 0
3 years ago
At the end of the electron transport chain, where is the light energy that was absorbed and converted by
stepan [7]

Answer:In light-dependent reactions, the energy from sunlight is absorbed by chlorophyll and converted into chemical energy in the form of electron carrier molecules like ATP and NADPH. Light energy is harnessed in Photosystems I and II, both of which are present in the thylakoid membranes of chloroplasts

Explanation:

8 0
3 years ago
Other questions:
  • Together, sewage treatment and drinking water treatment are used to _____.
    15·1 answer
  • An adolescent presents to a community clinic for treatment of vulvar lesions associated with type 2 herpes simplex. which interv
    11·1 answer
  • . In fruit flies, one genotype for red eyes is written XRXR. The R stands for the dominant allele for red eyes. What does the X
    8·1 answer
  • 8. A student used a microscope to observe Elodea submerged in a solution. The student observed the cell cytoplasm pull away from
    6·1 answer
  • Question 19
    14·2 answers
  • How does RNA leader sequence affect Trp operon syst
    6·1 answer
  • True or False?<br> "Scientists use ice cores to directly measure past climates"
    12·2 answers
  • Blank alleles will show in your phenotype even if it has one copy
    14·1 answer
  • Two possible reasons for unemploymen​
    8·1 answer
  • How do other organisms benefit from other biotic and abiotic things in tropical rainforest?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!