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oee [108]
3 years ago
12

Which term names the energy-containing molecule that is the immediate result of photosynthesis? A. ATP B. carbon dioxide C. wate

r D. glucos
Biology
1 answer:
Mnenie [13.5K]3 years ago
6 0
D because during photosynthesis, glucose is what is made inside the plant.
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The CRISPR/Cas9 system can cleave genomic DNA at sequences other than the desired target, a phenomenon referred to as off target
Deffense [45]

Answer:

The minimum length of a sgRNA sequence to avoid off target cleavage by the CRISPR/Cas system in the fly fruit genome is 14 bases

Explanation:

We are trying to use the CRISPR/Cas system to cleavage the genome of the fruit fly (which is 1.4x10^8 bp long). Also we desire the cleavage to be unique. That means we need a target sequence long enough to be able to assume it will only appear once in the genome.

First, we should think that in every position, we can find one out of four different nucleotide (A, C, T, G). So, the probability of getting a sequence of a given length "n" will be (1/4)^n (We are assuming that the probability of finding a nucleotide in the position "i", it's independent of the nucleotide we find in any other position "j").

Also, to know how many times a sequence will appear in a genome (the expected value of occurrence), we must multiply the probability of that sequence to randomly occur by the length of the genome. For our specific example, the number of occurence of a sequence of length "n" is:

nºoccurence=[(1/4)^n]*1.4*10^8

But in this case, what we want is the expected number of times the sequence will appear to be 1, and we want to obtain the length of the target sequence (n).

Given the information above, we know that:

[(1/4)^n]*1.4*10^8 =1

[(1/4)^n]=(1/1.4*10^8)=1.4*10^-8

Then, if we want to calculate n, we can use logarithms and its properties to get:

log[(1/4)^n]=log[1.4*10^-8]

n*log[(1/4)]=log[1.4*10^-8]

n=log[1.4*10^-8]/log[(1/4)] => n=13.29 approximately.

As the sequence needs to have a natural number of elements, <u>we can conclude that using a target sequence of a minimum of 14 bases with the CRISPR/Cas system in the fly fruit genome should be enough to avoid off target cleavage.</u>

3 0
3 years ago
The amount of blood ejected from the ventricle in a single contraction is called
tamaranim1 [39]

Answer: stroke volume

Explanation:

Stroke volume is the amount of blood ejected during ventricular contraction or for each stroke of the heart.

5 0
1 year ago
Where is mitosis in the cell cycle​
coldgirl [10]

Answer:

Mitosis Occupies a Portion of the Cell Cycle

Explanation:

Today, scientists know that Flemming had successfully distinguished chromosomes in the interphase portion of the cell cycle from chromosomes undergoing mitosis, or the portion of the cell cycle during which the nucleus divides

8 0
3 years ago
Which of the following describes a similarity and a difference between isotopes of an element?
jarptica [38.1K]
Isotopes of an element are defined has that has same atomic number but different mass number mean they have different number of neutrons
so the statement that best describe a similarity is 
<span> same atomic number; different mass number
</span>so correct option is C 
hope it helps

5 0
3 years ago
Eubacteria and archaebacteria differ in the process of protein synthesis. What is the difference?
bogdanovich [222]

Answer:

A

Explanation:

The main difference between Archaebacteria and Eubacteria is? Hint: Archaebacteria are called ancient bacteria whereas eubacteria are called true bacteria. Unlike eubacteria, archaebacteria can survive in extreme conditions

4 0
3 years ago
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