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jeka57 [31]
3 years ago
9

How many types of nucleotides are in DNA, and how do they differ?

Biology
2 answers:
Andrews [41]3 years ago
4 0

There are four different types of nucleotides in DNA, and they differ from one another by the type of base that is present: adenine (A), thymine (T), guanine (G), and cytosine (C). A base on one of the chains that makes up DNA is chemically bonded to a base on the other chain.

lesya692 [45]3 years ago
4 0

Answer:

Nucleotides in DNA contain four different nitrogenous bases: Thymine, Cytosine, Adenine, or Guanine. ... Pyrimidines: Cytosine and Thymine each have a single six-member ring. Purines: Guanine and Adenine each have a double ring made up of a five-atom ring attached by one side to a six-atom ring.

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3 years ago
What is the source of continuous heat and energy that we receive from the sun? Fill in the blank please
Lady bird [3.3K]

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Solar energy

Explanation:

5 0
2 years ago
Which two processes that occur during the formation of gametes contribute to increasing diversity within a populations gene pool
yanalaym [24]

Answer:

1) Crossing over

2) Independent assortment.

Explanation:

Gametes are formed resulting from the process of meiosis where the gametes get half of the original number of chromosomes. One phenomenon that happens during the prophase 1 of Meiosis and leads to the genetic diversification is crossing over. In this process , Here, homologous chromosomes pair up and exchange information present on genes from one another. When information is exchanged, it leads to the diversity of genetic data.

The second way of increasing genetic diversity is independent assortment that takes place during metaphase 1. In this process chromosomes from both father and mother cells align on equatorial plate of the cell in an independent manner. This means that some gamete can have 1 of many different chromosomal combinations.

This reshuffling of chromosomes during independent assortment enhances the genetic diversity of any organism and this also explains why kids of same parents can look or behave very different.

Hope it help!

8 0
2 years ago
Define the word phytoplankton!
RSB [31]

Answer:

hello

Explanation:

Phytoplankton are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems. 

have a nice day

3 0
2 years ago
Read 2 more answers
Since we now have the technology to use genetic fingerprinting to catch criminals, should we make every US resident provide a bl
rosijanka [135]

Answer:

It can be easily exploited by criminals, and it puts our undercover police officers and FBI officers in danger. Also, police officers are already swamped with work and criminal activity as is. It would also be ridiculously hard to get everybody already registered as a resident it the U.S. Take into account the different family types, and how hard it is for single mothers with children.

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Explanation:

6 0
3 years ago
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