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3 years ago

In which year did scientists learn how to isolate DNA genes

1 answer:

5 0

<span>Oswald Avery identifies DNA as the 'transforming principle' By the 1940s, scientists understanding of the principles of inheritance had moved on considerably - genes were known to be the discrete units of heredity, as well as generating the enzymes which controlled metabolic functions.
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The answer is 1944
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This quotation likely came from which of the following? A War Hawk An American Indian President Madison A member of the Federali

yuradex [85]

Answer(:D)

A member of the federalist Party

Explanation:It's correct on edg

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3 years ago

When you lose your bsf and you dont know what to do....

DIA [1.3K]

Answer:

my mind went... "BOOM!*

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2 years ago

Which of the following species has the same number of protons as fe³⁺?

mafiozo [28]

The number of protons in an element is the atomic number of the element, and it is not affected by the charge on the element. Hence, the species which has similar Number of proton is Fe²⁺

To know the species which the same number of protons as Fe³⁺, we need to obtain the <em>atomic number of the elements on the periodic table</em> :

Fe³⁺, Atomic number = 26; Number of protons = 26

Mn³⁺, Atomic number = 25; Number of protons = 25

Co²⁺, Atomic number = 27; Number of protons = 27

Fe²⁺, Atomic number = 26; Number of protons = 26

Ni, Atomic number = 28; Number of protons = 28

Therefore, only Fe²⁺ has the same number of protons as Fe³⁺

Learn more :brainly.com/question/18631164

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2 years ago

A chemist places a 100 g cube of each of the metals listed in the table on a separate hot plate. Based on the specific heat valu

Volgvan

The ranking of the metals in terms of how quickly they reach the target temperature are; Pb: 1, Sn: 2, Cu: 3, Fe: 4, Al: 5

Solving Specific Heat Capacity

The formula for quantity of heat from specific heat capacity is;

Q = m * C_s * ΔT

where;

Q is specific heat energy

C_s is specific heat capacity

ΔT is change in temperature

m is mass

Thus, the lower the specific heat or quantity of heat energy, the faster the change in temperature

Making ΔT the subject of the formula gives;

ΔT = Q / ( m * Cs)

We are told that the heat (Q) and mass (m = 100 g) are equal for the five samples. Thus, we have;

ΔT = [Q/m]/C_s

Since Q/m is constant for all the 5 samples, inputting the specific heat capacities means that the higher the specific heat capacity the slower the change in temperature but the lower the specific heat capacity, the quicker the change in temperature.

Solving online means that the fastest to slowest are;

Pb: 1, Sn: 2, Cu: 3, Fe: 4, Al: 5

Read more about Specific Heat energy at; brainly.com/question/13439286

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2 years ago

Select the order in which the vertices are visited in a pre-order traversal of the tree shown below.Question 5 options:e, i, b,

Aleksandr [31]

Based on the vertices and the pre-order traversal order the tree would be visited is e, i, b, h, f, a, c, d, g.

<h3>What order will the tree be visited?</h3>

When using the pre-order traversal, the order would be from the root child node to the left child node to right child node.

The root node is the highest node which is e. From here you'll then proceed to the left roots first which means you'll go to i and then b.

From there you go to h and then f. The next nodes would be a and c.

Continuing from left to right, you'll then go to d and then g.

You'll therefore start from "e" and move to "i" and then "b" to "h" and then "f" and "a" to "c" and then to "" and finally to "g"

Find out more on the pre-order traversal at brainly.com/question/14559964.

#SPJ1

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2 years ago