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
masya89 [10]
3 years ago
9

What evidence do we have that DNA exists?

Biology
1 answer:
makvit [3.9K]3 years ago
3 0
Dna exists in the cells of all living organisms and dna proves evolution
You might be interested in
For a dominant/recessive trait, do the offspring of identical parents always look like the parents? Explain
VladimirAG [237]

Explanation:

No, because there may be traits that skip a generation. ... Offspring from sexual reproduction are unique and contain DNA from both parents. Offspring from asexual reproduction are an identical copy of their parent.

5 0
3 years ago
Read 2 more answers
A phycologist is interested in testing the claim that the proportion of algae from a local rivulet that belonged to the particul
Shkiper50 [21]

Answer:

The test statistic for this hypothesis test is - 3.68.

Explanation:

A test statistic is a random variable that is calculated from sample data and used in a hypothesis test. You can use test statistics to determine whether to reject the null hypothesis. The test statistic compares your data with what is expected under the null hypothesis.

Sample proportion = 38/50

= 0.76

Hence,

Test statistic

= \frac{0.76-0.50}{\sqrt{0.50*0.50/50}}

= 3.68

4 0
2 years ago
In a certain breed of plants, dark green is determined by the dominant gene 'G' and light green is determined by the recessive g
stealth61 [152]

Answer:

The answer is 300.

Explanation:

When we cross GG and gg, 100% of the offspring will be heterozygous. If the heterozygotes show 75% penetrance meaning that there is a 75% probability that the plant that has the G gene will actually show it in it's phenotype.

So that means that 75% of the offspring should have dark green color, which means that 300 plants will have the expected phenotype and 100 will not.

I hope this answer helps.

7 0
3 years ago
What is the name of the system for blood travel in the human body?
andreyandreev [35.5K]
Circulatory system.....circulates blood (a vital delivery system of oxygen) throughout the whole body when tissues need it the most and with a constant supply.
4 0
3 years ago
Homologous chromosomes separate from each other during
Kamila [148]

Answer:

In anaphase I of meiosis I the homologous chromosomes are pulled apart from each other.

Explanation:

Did this help? Click brainl, thank you or rate please!

Miss Hawaii

6 0
2 years ago
Other questions:
  • Henry eats rice for lunch, which contains starch. Which enzyme catalyzes the reaction that takes place and which product is the
    9·1 answer
  • Compare the Venn diagram of sexual reproduction and asexual reproduction in plants. Where in the diagram would you add identical
    15·2 answers
  • When magma reaches the surface of the earth, it is called​<br><br>plz help
    8·2 answers
  • Which part of the bean see stores fpod for the early development of new plant​
    14·1 answer
  • Jackie Robinson avoided serious<br> trouble as a teenager
    6·1 answer
  • 10 differentiate between sublime and distillate​
    11·2 answers
  • Two effectors in the body
    11·1 answer
  • True or false? Vegetable oils are part of a balanced diet.
    15·1 answer
  • Which of the folowing pairs of macromolecules and their monomers are unrelated?
    10·1 answer
  • Describe the biological community and an ecosystem to which you belong.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!