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antiseptic1488 [7]
3 years ago
11

What is carbon fixation?

Biology
1 answer:
irina1246 [14]3 years ago
8 0

Answer:

D.both A and B

Explanation:

because if there some option,like abcd and the letter d. is both a and b that is the correct answer.

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Anarel [89]
The answer is B . Hope this helps
8 0
2 years ago
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Can you check if it was right and answer it if it’s wrong. Thanks <br><br> 13 POINTS!!!
dmitriy555 [2]

This question is correct. I believe so?

7 0
3 years ago
One g of fecal matter was suspended in 99 ml saline solution (tube 1). After mixing gently but thoroughly, one ml from tube 1 wa
malfutka [58]

Answer: the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

Explanation:

We know that; Gram negative bacteria looks  pale reddish in color under a light microscope from Gram staining.

therefore

There are 30 red bacterial colonies counted.

1 mL of from tube 1 was removed and added to tube with 99 mL saline (tube 2) dilution is 1/100.

transferred volume  into the plate is 1 mL.

Now, we have to determine the cfu/g Gram-negative bacteria in the fecal sample

Formula to calculate CFU/g bacteria in fecal sample is expressed as;

C = n/(s×d )

where C is concentration (CFU/g) , n is number of colonies , s is volume transferred to plate , d is dilution factor.

so we substitute

C = 30 / ((1/100) × 1)

C = 30 / 0.01

C = 3000

C = 3.0 × 10^3

THERFERE, the cfu/g Gram-negative bacteria in the fecal sample is C = 3.0 × 10^3

3 0
3 years ago
There are four levels of protein structure. These figures show primary, secondary, tertiary, and quaternary protein structure. W
Stella [2.4K]

Answer:

C) Primary, tertiary and quaternary levels of protein structure

Explanation:

Primary structure; Covalent bond is present in form of peptide bond in the primary structuture of proteins. The amino acids are held together in the polypeptide chain by peptide bond.

Tertiary structure; Disulfide bonds are present between cysteine amino acids, that keeps the parts of polypeptide chain strongly attached to one another.

Quaternary structure; The Quaternary structure of protein is held together by hydrophobic interaction and disulfide bonds.

8 0
3 years ago
One possible result of chromosomal breakage is for a fragment to join a nonhomologous chromosome. What is this type of chromosom
Aleks04 [339]

One possible result of chromosomal breakage is for a fragment to join a nonhomologous chromosome. What is this type of chromosomal alteration called <u>translocation.</u>

A chromosomal fragment is translocated when it is moved from one genomic sequence to another. Around two nonhomologous chromosomes, a translocation mechanism takes place in order to permit the interchange of fragments created by chromosomal breakage.

When a segment of one chromosome separates and affixes towards another chromosome, translocation takes place. If there is neither genetic material growth nor loss in the cell, such a form of rearrangement would be referred to as balanced.

To learn more about nonhomologous chromosome here

brainly.com/question/18765644

#SPJ4

4 0
1 year ago
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