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Lemur [1.5K]
2 years ago
6

The backbone of dna (i.e., sides of the dna "ladder") consists of

Biology
2 answers:
yulyashka [42]2 years ago
8 0
Alternating phosphate and sugar residues
Nezavi [6.7K]2 years ago
6 0

The structure of DNA consists of three main molecules-

1. Nucleotides

2. Sugar

3. Phosphate

Now, nucleotides are present on the inner side of the DNA strand, the sides or the backbone of DNA is made of the other two molecules, i.e. sugar and phosphate. The structure looks like the image shared below. One carbon atom of the sugar molecule is connected to nucleotide, and two carbons are connected to phosphates at two sides. This way a chain or the backbone of DNA is formed.

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What is the answer help !!!!!!
Phoenix [80]

you are correct, it would be D. i hope this helps you out!

3 0
3 years ago
scientist are studying a group of ant colonies in the arizona desert which question can be answered scientifically
timurjin [86]

Answer:

Scientists are studying a group of ant colonies in the Arizona desert. Which question about the ants can be answered scientifically?

Explanation:

The correct answer will be option- Does the amount of sunlight in a day affect how much food the ants eat that day.

Explanation:

A scientific method is a systematic approach to understand and explain any natural phenomenon in nature. The scientific method involves making, ask a scientific question, do background research and propose a hypothesis which could be tested to produce a real answer to the scientific questions.

In the given question, the scientist wants to study the ants in the desert through scientific method. The possible question that could be answered will be the how the amount of light can affect the quantity of food consumed by ants as the amount of food can be studied through the experiments by proposing a hypothesis.

Thus, the selected option is the correct answer.

7 0
2 years ago
Read 2 more answers
Geneticists have determined that the majority of individuals in an isolated island population have blood type
oee [108]

Question continuation;

..........type B. Type A is found to be more common in the mainland population from which the island was settled.

How could a geneticist best explain the dominance of blood type B in the island population?


Multiple choices;

A. Random mutations have occurred in the island population.

B. Genetic drift has reduced the frequency of type A individuals.

C. Natural selection has only occurred in the mainland population.

D. Environmental conditions on the island are less favorable for type B individuals.


Answer;

B. Genetic drift has reduced the frequency of type A individuals.


Explanation;

-Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance.

-It occurs in all populations of non-infinite size, but its effects are strongest in small populations.

8 0
2 years ago
Read 2 more answers
5th grade pls help
____ [38]
Their mass because it can let you know their weight and size
4 0
2 years ago
PLEASE HELP ME
Svetradugi [14.3K]
The daughter cells are produced with only half the chromosomes of the parent cell. The correct option among all the options given in the question is option "D". So the main goal of meiosis is actually creating four daughter cells that are by no means similar to the parent cells. When these daughter cells that are created combine together and undergo the process of fertilization, then a zygote is formed and the development of cells starts. The process of meiosis can be asexual as well as sexual.


5 0
2 years ago
Read 2 more answers
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