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Marianna [84]
3 years ago
6

The double-helix structure of DNA:

Biology
1 answer:
slega [8]3 years ago
4 0

Answer:

Looks like a twisted staircase (example attached)!

hope this helps! plz mark brainliest? :)

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Which items exist on earth because of green plants ?
Evgesh-ka [11]

From the following items:


1. An atmosphere containing oxygen


2. wooden furniture


3.food, including vegetables, fruits, and meats


4.fibers to make cloth


5. drugs such as aspirin


6. fossil fuels such as oil, gas, coal and nutrient-rich soil



ALL of these things are one way or another, exist because of green plans. E.g. Oxygen is released by plans, while wood for furniture comes from trees.

All fruits and vegetables are grown on plans while even meat comes from animals who eat green plans.


Fibres such as wool also come from animals which eat plans, and fossil fuel is made from the remains from millions of years of old plans in the ground.


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7 0
3 years ago
Why are linked traits inconsistent with Mendel's laws?
7nadin3 [17]

Answer:

Linked Genes Violate the Law of Independent Assortment. Although all of Mendel's pea characteristics behaved according to the law of independent assortment, we now know that some allele combinations are not inherited independently of each other.

Explanation:

PLz, mark me as a brainlist :)

8 0
3 years ago
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The pupils or the dark centers of your eyes, get larger when you move into a dark area. What characteristics of living things do
Taya2010 [7]
B) Response to stimuli
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If a mutation in the dna of an organism results in the replacement of an amino acid containing a polar r-group with another amin
kiruha [24]
The R group of the proteins are side chains which are specific to each protein and which confer specific chemical properties to the proteins. The R group determines the size, polarity and the pH of the protein.
In the case of the protein where the amino acid containing a polar R group is replaced with another amino acid containing non polar R group, the TERTIARY structure of the protein might be affected. Structure will be affected if the protein is hydrophillic and the R group is hydrophobic. 
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Binary fission is a type of ______ seen in prokaryotes, such as archaea and bacteria.
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Binary fission is a type of asexual reproduction seen in prokaryotes, such as archaea and bacteria.

Binary fission is the formation of daughter cells by the separation of an organism into two parts. The division of the genetic material occurs by the method of duplication. The daughter cells are identical to each other. The examples of organisms that undergo binary fission are: Escherichia coli, Salmonella enterica and Clostridium botulinum.

Asexual reproduction is the process of producing new organism without the fusion of gametes. Only one parent can give rise to offspring. There are several methods of asexual reproduction. These are: binary fission, fragmentation, budding, vegetative propagation and spore formation.

To know more about binary fission, here

brainly.com/question/12196278

#SPJ4

8 0
2 years ago
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