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TEA [102]
3 years ago
12

During photosynthesis

Biology
1 answer:
Eduardwww [97]3 years ago
5 0

Answer:B

Explanation:

The first stage of photosynthesis is the light reaction which occur in the thylakoid membrane of the chloroplast. Solar energy of light captured by chlorophylls, and is used to produce high-energy electrons of which in a series of reactions produces ATP and NADPH.

In the dark reaction of photosynthesis the ATP and NADPH are used to reduce CO2 to produce sugar

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During human fertilization, an egg and a sperm cell unite. which structures in these cells carry the genes that will be transfer
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Answer: C. Chromosomes

When an egg and sperm cell unite, fertilization follows. The chromosomes carry the genes that will be transferred to the offspring. They have threadlike bodies that made up of DNA and protein that carries hereditary information, which is used to help a cell grow and reproduce.

Furthermore, humans have 46 chromosomes and 23 in each sex cell and they are found in the nucleus of a cell.

 

5 0
3 years ago
Jon likes hiking. He observes that whenever he hikes up a hill, he breathes heavier than when he is on flat ground. Which two st
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When climbing a hill or mountain, there are different condions which the body reacts to, first: the body begins to exercise, since it must carry all our weight when climbing up a hill, this generates that the heart accelerates and pumps the blood more quickly so that it reaches our whole body out, and the second one, is that at a higher height, less oxygen, if already, our body comes with the heart shaken by the physical exercise, now it has to  accelerate your breathing to get the necessary oxygen for the blood and the body, these two things make us breathe heavily.
5 0
4 years ago
Read 2 more answers
What are things Animal Cells have Only
Daniel [21]

Answer:

Animal cells have centrosomes (or a pair of centrioles), and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts, plasmodesmata, and plastids used for storage, and a large central vacuole, whereas animal cells do not.

Explanation:

hope this helps :D pls mark brainliest :D

4 0
3 years ago
Why do people call DNA the genetic code and how does it work?
Degger [83]

Answer:

Genetic code is the term we use for the way that the four bases of DNA--the A, C, G, and Ts--are strung together in a way that the cellular machinery, the ribosome, can read them and turn them into a protein. In the genetic code, each three nucleotides in a row count as a triplet and code for a single amino acid. Genetic code. The genetic code is the set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins (amino acid sequences) by living cells. ... Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid. DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.

Explanation:

4 0
3 years ago
Read 2 more answers
Abundance of the different bases in the human genome. Results on the human genome published in Science (Science 291:1304-1350 [2
Alexxx [7]

Answer:

A typical Human Cells=3.1428*10^9 residues.

T typical Human Cells=3.1428*10^9 residues.

G typical Human cells=2.6772*10^{9} residues.

C typical Human cells=2.6772*10^{9} residues.

Explanation:

Given:

Number of human genome in pairs=2.91*10^9 base pair

Number of Human genome single bases=2*2.91*10^{9} =5.82*10^{9} bases

We know that human genome are diploid, Total Human genomes will bases will be 2* 5.82*10^{9}=1.164*10^{10} bases

Since A is 27%:

A typical Human cells=0.27*1.164*10^{10}

A typical Human Cells=3.1428*10^9 residues.

The Number of T and A residues are same in human genome. So,

T typical Human cells=3.1428*10^9 residues.

Since A and T combined form 54% of human genome then G and C form 46% combined and 23% each.

G typical Human cells=0.23*1.164*10^{10}

G typical Human cells=2.6772*10^{9} residues.

The Number of G and C residues are same in human genome. So,

C typical Human cells=2.6772*10^{9} residues.

5 0
3 years ago
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