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Sedbober [7]
4 years ago
11

Who first identified DNA?

Biology
2 answers:
stepan [7]4 years ago
8 0

Answer:

Friedrich Miescher

Explanation:

Many people believe that American biologist James Watson and English physicist Francis Crick discovered DNA in the 1950s. In reality, this is not the case. Rather, DNA was first identified in the late 1860s by Swiss chemist Friedrich Miescher.

maksim [4K]4 years ago
5 0

Answer:

Friedrich Miescher

Explanation:

In 1869, Swiss physiological chemist Friedrich Miescher first identified what he called "nuclein" in the nuclei of human white blood cells, which we know today as deoxyribonucleic acid (DNA).

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Which of the following is a plant adaptation to living in a cold climate?
NemiM [27]

Answer:

b. Vernalization

Explanation:

Vernalization is a phenomenon in which plants require low temperature for the flowering. There is either qualitatively or quantitatively dependent on exposure to very low temperature. This process is known as vernalization. Vernalization defines especially to the promotion of flowering by a period of  low climate. For example; Vernalisation occurs in biennial plants. Biennials are monocarpic plants which normally flower and may die in the second season. Some common examples of biennials are carrots, Sugarbeet, cabbages, etc.

6 0
4 years ago
How do the solar system models of Ptolemy and Copernicus differ?
Lilit [14]
Copernicus' model: "Sun-centered," or "heliocentric"
Copernicus thought that the planets orbited the Sun, and that the Moon orbited Earth. ... Copernicus was correct about some things, but wrong about others. The Sun is not in the center of the universe, and it does move, as do the stars.
8 0
4 years ago
Why do organisms have varying traits, like different colored eggs?
mylen [45]

the organisms have varying traits, like different colored eggs because of the natural selection.

<h3>What is the process of natural selection? </h3>

Natural selection is one of the main mechanisms of evolution. In a very simple way, we can say that natural selection is a process in which the fittest organisms are selected, survive in the environment, reproduce and pass their characteristics on to their descendants.

the color change of an egg occurs by natural selection and also by genetic variability. since the environment will select the best ones to survive and mutations will occur. Natural selection will forcefully change the environment causing only a few species to survive.

See more about natural selection at brainly.com/question/9830102

#SPJ1

5 0
2 years ago
What cell stage is E in&gt;
OLga [1]
Interphase should be the stage of the cell
7 0
3 years ago
When the body experiences a significant blood loss, the ________ produces the hormone erythropoietin to stimulate the production
yKpoI14uk [10]

Answer: Kidney

Explanation: The Kidneys produce the hormone in response to cellular hypoxia due to loss of blood.

4 0
3 years ago
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