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4vir4ik [10]
3 years ago
11

Describe three chemical changes that occur during the light-dependent reactions.​

Biology
1 answer:
Gemiola [76]3 years ago
5 0
The light-dependent reactions require light and water, occur in the thylakoids, and produce ATP and NADPH. The light-independent reactions require carbon dioxide, occur in the stroma, and produce high-energy sugars. What are the three primary factors that affect the rate of photosynthesis


Hope I could help!
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In the 1950s, when Watson and Crick were working on their model of DNA, which concepts were well accepted by the scientific comm
julia-pushkina [17]

Answer:

Option (1), (2) and (3).

Explanation:

DNA is the genetic material of all the living organisms present on earth. The DNA contains the nitrogenous bases, pentose sugar and the phosphate group. DNA strands runs in the opposite direction and shows polarity.  

Watson and Crick explain the structure of DNA based on the X ray diffraction produced by Rosalind. According to the structure, chromosomes are present in the nucleus and contains the DNA and wrapped around the proteins. The genes is considered as the functional segment of DNA.

Thus, the correct answer is option (1), (2) and (3).

6 0
3 years ago
Assume that two genes are 80 map units apart on chromosome II of Drosophila and that a cross is made between a doubly heterozygo
STatiana [176]

Answer:

The recombination frequency between two genes exhibits a positive correlation with the distance between them, that is, farther they are, and more will be the chance of recombination. Thus, recombination frequency is used to signify distance among the two genes, for example, 1 percent recombination frequency demonstrates distance of 1 map unit.  

Let us consider that the heterozygous female of genotype AaBb can generate four kinds of gametes, that is, AB, Ab, aB and ab. Of these, the two gametes are the outcomes of recombination, or it can be said that 50 percent are recombinants. Thus, it can be concluded that in case of two linked genes, the maximum probable recombination frequency is 50 percent.  

This shows that any genes, which are distant than 50 map units will function as unlinked and will function as if they were on distinct chromosomes, and the frequency of recombinant frequency will be 50 percent.  

In the given question, it is given that the map distance between the two genes is 80 map units, that is, more than 50 map units. The maximum probable recombinant offspring will be 50 percent of the entire offspring.  

6 0
3 years ago
PLEASE HELP !! ILL GIVE BRAINLIEST *EXTRA 40 POINTS* DONT SKIP :(( .!
Naya [18.7K]

Answer:

I think the answer is B.

Explanation:

I think this because they have these variations to better adapt to conditions in their environments.

5 0
2 years ago
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What is an example of mutualism in the rainforest?
bagirrra123 [75]
"An example of mutualism in the rainforest is the pollination of the Durian tree by bats."
5 0
3 years ago
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Which of the following best describes the relationship between the sun and Jupiter?
Softa [21]

Answer: B) Jupiter and the sun have a similar composition.

Explanation:The only significant difference between the sun and Jupiter is in the sizes i.e jupiter is smaller compared to the size of the sun.

However their similarities is in their composition i.e what they are made up (helium and hydrogen).

The core of Jupiter is made up of liquid metallic hydrogen and the sun's core or center is also made up 34% mass plasma of hydrogen.

So option B (Jupiter and the sun have a similar composition) best describes the relationship between Jupiter and the sun.

3 0
3 years ago
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