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Anna [14]
3 years ago
11

Name two disaccharides which are reducing sugar​

Biology
2 answers:
OleMash [197]3 years ago
8 0

Answer:

lactose and maltose

Explanation:

only sucrose is a non reducing sugar

serg [7]3 years ago
5 0

Answer:

Two reducing disaccharides sugar : Lactose and maltose.

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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
Thermal energy is the
KIM [24]

Answer:

Thermal energy also known as “heat energy” comes from a substance whose molecules and atoms are vibrating faster due to a rise in temperature.

Explanation:

3 0
3 years ago
The first stage of cellular respiration glycolysis is an anaerobic process. During glycolysis glucose is converted to two molecu
Oduvanchick [21]

Answer:

Oxidation of NADH by electron transport chain ensures a continuous supply of NAD+ for glycolysis.  

Explanation:

To continue the process of glycolysis, cells must have a continuous supply of NAD+ which is required during one of the reactions of the payoff phase of glycolysis. Two molecules of NADH are formed per glucose molecule during glycolysis. The NADH gives its electrons to the terminal electron acceptors (O2) via electron transport chain. This ensures that the process of glycolysis is continued in cells to breakdown the glucose into pyruvate.

8 0
3 years ago
As greenhouse gas concentrations increase across the globe in our atmosphere, we are observing
Triss [41]

Answer:

below

Explanation:

Greenhouse gas increases will cause an increase in desert areas on Earth. Current desert areas will grow as

temperatures cause increased evaporation. Humans will migrate away from these areas of low water and

productivity

7 0
2 years ago
Nuclear envelope forms at each pole spindle dissolves chromosomes uncoil is called
zavuch27 [327]

Answer:

The moment where the nuclear envelope forms at each pole spindle dissolves chromosomes uncoil is called Telophase.

Explanation:

In the eukaryotic cell, telophase is the final stage in meiosis and mitosis. In this step, the effects of prophase and prometaphase are reversed. This is the forth stage and a nuclear envelope forms at each pole. The spindle dissolves and the chromosomes uncoil, cytokinesis begins. The cell continues to enlogate.

8 0
3 years ago
Read 2 more answers
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