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BabaBlast [244]
3 years ago
10

Pleeeeeasssssee heeelp asap The image is attached

Biology
1 answer:
MArishka [77]3 years ago
4 0
The answer is B. Grassland
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What is the original source of energy in a food web?
sp2606 [1]

Answer:

the sun or grass

Explanation:

first the sun because the sun helps produce photosynthesis which grows the grass so that other animals can eat from the grass

6 0
3 years ago
Which solution decreases in volume when a semipermeable membrane is placed in between?
elena55 [62]
The less concentrated solution, aka the solution with more water molecules. Water molecules will move from a higher water potential region to lower, by osmosis, which requires a semi permeable membrane
6 0
3 years ago
Laminine – What is it?
jok3333 [9.3K]

Explanation:

Laminine has 2 components : (22+ Full chain amino acids (proteins), and Fibroblast Growth Factor (FGF).

Yes, Laminine is an antiaging daily dietary supplement that contains (FGF).

It is used for-

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Yes, I would suggest to a patient.

Side effects : The answer is no, there are no side effects as laminine supplement is 100% natural.

7 0
3 years ago
You've discovered a gain-of-function mutant E. coli strain that makes red colonies on plates containing normal minimal medium; w
Komok [63]

Answer:

The correct answers are options

B. "Sequencing reagents, such as dNTPs, ddNTPs, and DNA polymerase".

C. "A computer to blast the base pair sequence of the bacterial genomic insert against the genome sequence of your E. coli strain".

F. "An E. coli genomic library made from the mutant strain".

I. "A sequencing primer that hybridizes adjacent to the insertion site of the bacterial genomic fragment in the library plasmids, and pointing in the 5'-to-3' direction towards the bacterial genomic DNA insert".

Explanation:

Plasmid library transformation approaches are very useful to characterize novel mutant bacterium strains. In order to perform a characterization study of this kind, several reagents and tools are needed, including:

- "Sequencing reagents, such as dNTPs, ddNTPs, and DNA polymerase". One important part of knowing what makes novel mutant bacterium different is to sequencing its DNA.

- "A computer to blast the base pair sequence of the bacterial genomic insert against the genome sequence of your E. coli strain". BLAST is a useful computer tool that compares and aligns DNA sequences, this allows to detect what are the nucleotides that are unique in the novel mutant bacterium.

- "An E. coli genomic library made from the mutant strain". Once DNA has been sequenced, an genomic library must be constructed to ensure that this novel mutant is preserved.

- "A sequencing primer that hybridizes adjacent to the insertion site of the bacterial genomic fragment in the library plasmids, and pointing in the 5'-to-3' direction towards the bacterial genomic DNA insert". Sequencing primers are needed when new genomic libraries are constructed. This short DNA sequences allow DNA polymerase to synthesize the DNA an replicate the genome of interest.

6 0
3 years ago
Experimental support for Mendel's law of segregation comes from the results of self-fertilizing F2 plants that display the domin
Tom [10]

Answer:

2/3

Explanation:

When two heterozygous plants (let's suppose Tt and Tt) are crossed, the progeny exhibits dominant and recessive phenotype in a 3 : 1 ratio respectively. This occurs since T and t alleles present together in the heterozygous parent plant segregate from each other and are distributed to the different gametes.  

Cross Tt x Tt= 1/4 TT: 1/2 Tt: 1/4 tt

Considering the genotype of the F2 progeny, there is 2/3 heterozygous dominant progeny (Tt) out of a total of 3/4 dominant progeny. This heterozygous dominant progeny would give a 3:1 ratio of dominant and recessive progeny upon self-fertilization.

3 0
3 years ago
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