1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Katyanochek1 [597]
3 years ago
12

How did James Watson and Francis crick explain the dna molecules consistent width

Biology
1 answer:
vagabundo [1.1K]3 years ago
3 0
They took wet x-ray diffraction of the DNA and found that it was shaped in a helix form, which turned out to be a double helix which is what we know today. 
You might be interested in
How can i use point mutation in a sentence
Flura [38]
It was at that POINT MUTATION began
6 0
3 years ago
Pedigrees are used to help geneticists understand how traits are inherited between generations. The Romanovs, a Russian royal fa
svet-max [94.6K]
The question is the following :
<span>What is the best evidence to prove that Irene was heterozygous for hemophilia?
A) Alice carried the recessive allele.
B) Alexandra carried the recessive allele.
C) Frederick carried the recessive allele.
D) Waldemar carried the recessive allele.


The correct answer is A

In the pedigree, marked with blue are the carriers of the X recessive allele ( they have one X that has the mutation and the other that doesn't).
Alice was Irene's' mother, and since both Alice and iIrene have the allele, it is safe to conclude that Irene inherited the recessive allele from Alice.</span>

6 0
3 years ago
Read 2 more answers
On your own: Click Return to original settings and Restart. Investigate the effects of agriculture on
Scrat [10]

Agriculture negatively affects reef ecosystems because the soil and the sea have a direct interaction of substances and minerals that can be altered with the intensification of agriculture.

<h3>What is agriculture?</h3>

Agriculture is a human activity that is based on planting seeds in the ground so that they develop and form plants that have uses such as food or others.

This is one of the oldest activities of humanity and has allowed communities to develop and create trading systems, wooden constructions, navigation, among others.

<h3>What impact does agriculture have on the reefs?</h3>

Agriculture generally takes place in coastal areas or near rivers because the composition of the soil must have certain minerals necessary for plants to grow.

Additionally, the components of the soil go underground to the sea and provide the water with different substances that contribute to marine life. However, the use of pesticides and other agricultural chemicals could reach the sea through runoff and affect the reefs.

Learn more about reefs in: brainly.com/question/364711

4 0
2 years ago
Where does the water in lakes come from? Select the three correct answers.
miskamm [114]

Answer: the correct answers are A, C, and D.

Explanation:

if the water is in a lake then no ocean water can reach that lake.

5 0
3 years ago
Which method of food production is sustainable?
yarga [219]

Answer:

Improving food storage facilities

4 0
3 years ago
Read 2 more answers
Other questions:
  • There are six kingdoms of living things. Archaebacteria is one of these kingdoms. Which choices are also kingdoms of living thin
    9·1 answer
  • What is the oldest type of bacteria
    13·1 answer
  • Describes natural selection?
    6·1 answer
  • Which structures are in plant cells but not animal cells
    7·1 answer
  • Anyone want points? or sometin
    13·2 answers
  • A unique substance composed of atoms having the same atomic number
    14·1 answer
  • Why do cells use ATP<br> instead of using the energy<br> directly from the food?
    6·1 answer
  • What are two kinds of molecules that make a good model of a solid dissolving in a liquid?
    6·1 answer
  • What do scientists call a region of Earth that contains an unusually large number of species that are threatened by habitat loss
    12·1 answer
  • Question 13 (5 points)<br> What characteristics do all of the outer planers share?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!