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
damaskus [11]
3 years ago
11

The DNA bases arrange themselves in A) every possible combination b) combinations that depend on certain shapes

Biology
1 answer:
tankabanditka [31]3 years ago
3 0
I believe the answer is A.
You might be interested in
ATP serves which function in cells?
mote1985 [20]
ATP is the main chemical vehicle for biochemical energy transfer within all the cell's domains
3 0
3 years ago
Meselson and Stahl used density labeling of DNA to show that DNA replication occurs via a semiconservative mechanism. In their e
cricket20 [7]

Answer:

  • The organism previously used 15N for replication so all the DNA molecules were of 15N15N type. Then the organism is shifted to a medium where only 14N is available for replication.
  • According to semi conservative mode of replication, a newly synthesised DNA molecule consists of one new strand and one parental strand. So after the first round of replication, All the 15N strands will synthesise new DNA strands using 14N resulting into intermediate 15N14N DNA molecules. Hence, only one band would be observed (15N14N) above the original 15N15N band since 15N14N has lighter isotope too so it will be lighter than 15N15N molecules and will lie above it.
  • After second round of replication, 15N strand from 15N14N would synthesise another 14N strand. 14N strand from 15N14N molecules will also synthesise another 14N strand. So now, 50% of the DNA molecules will be of 15N14N intermediate type and 50% of them will be of 14N14N type.Two bands will be observed above the original 15N15N band. One band of 15N14N molecules will be right above it and other band of 14N14N molecules will be even higher because it is the lightest band since it has only the lighter isotope of nitrogen.
8 0
3 years ago
What can affect the function of a cell?
pishuonlain [190]

The answer is all of the above

6 0
2 years ago
Read 2 more answers
4. Analyze: Compare the offspring traits to the parent traits.
Oksana_A [137]

Answer: 4a. The transmission of characteristics from parents to offspring is called heredity, and the characteristics that are inherited can be predicted. 4b. An acquired characteristic is a non-heritable change in a function or structure of a living organism caused after birth by disease, injury, accident, deliberate modification, variation, repeated use, disuse, misuse, or other environmental influence. Acquired traits are synonymous with acquired characteristics.

Explanation:

8 0
3 years ago
Antibiotics can be used to treat _____.
GrogVix [38]
The answer is that they treat bacterial infections.
8 0
2 years ago
Read 2 more answers
Other questions:
  • Name one example where energy transfer by convection is occurring
    7·1 answer
  • If you were able to look at single hemoglobin tetramers in a solution when the average number of O2 per tetramer bound was one.
    13·1 answer
  • The most common type of electronic evidence is
    9·1 answer
  • The inflammatory response can cause
    11·1 answer
  • Some bacteria are decomposers, which fill an important role in the food web. What
    9·1 answer
  • Describe two ways that water moves through Earth's biosphere in the water cycle
    11·2 answers
  • Explain what air pressure indicates with weather
    9·1 answer
  • 10. What are the advantages of each type of reproduction
    8·2 answers
  • What are proteins compounds involved in?
    13·2 answers
  • If the mitochondria and chloroplasts in eukaryotic cells resulted from endosymbiosis between various prokaryotes, what features
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!