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vichka [17]
2 years ago
6

Explain the purpose of dna

Biology
2 answers:
mina [271]2 years ago
4 0

Answer:

Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.

Explanation:

Vinil7 [7]2 years ago
3 0
If adopted or any other circumstance wanted or needed to find out if someone is related, etc. You could take a DNA test to see if related.
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8. The kinetic energy of an object depends
Trava [24]
It’s mass and speed. This is because the equation for Kinetic energy is KE=1/2mv^2
7 0
3 years ago
how can scientists accurately compare atmospheric composition today with atmospheric composition thousands of years ago?
Vinil7 [7]

Answer:

They accurately compare the current atmosphere with the previous one, by assessing the amount of atmospheric gases present today, with the amount of atmospheric gases trapped in ice cores that they believe are millennial, that is, they have existed for thousands of years ago.

Explanation:

As we know, it is difficult to compare current characteristics of the planet earth with characteristics that the planet had in the past, thousands of years ago. This is because the ancient characteristics on earth are not fully available to be analyzed, since most of them have been modified over time.

To do this, scientists need to find factors that may have existed thousands of years ago and assess whether these factors have any account of the characteristics of the earth. In the case of atmospheric characteristics, it is common for scientists to compare the current atmosphere with the atmosphere of thousands of years ago, with the assessment of the amount of atmospheric gases trapped in ancient ice cores, with the amount of atmospheric gases present in the atmosphere today.

3 0
3 years ago
Assume that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur
MakcuM [25]

Answer:

Option (e).

Explanation:

Meiosis may be defined as the process of cell division in which a single parent cell divides into four daughter cells. The chromosome number reduces to half in meiosis.

Crossing over is the process of exchange of genetic material between the homologous chromosomes of the non-sister chromatids. Crossing over will bring variation in the gametes. Hence, the absence of crossing over results in the formation of gametes with less genetic variation.

Thus, the correct answer is option (e).  

7 0
3 years ago
The course adjustment knob on a microscope should never be used with which of the
ohaa [14]
B. A low power lens
7 0
2 years ago
A small group of travelers is meeting inside an ancient building, and the travelers need access to the Internet using their mobi
scoundrel [369]

Answer:

B

Explanation:

because he's the only one with good internet connection

4 0
3 years ago
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