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igor_vitrenko [27]
3 years ago
11

Which molocule is used to cut out a section of dna

Biology
1 answer:
pshichka [43]3 years ago
7 0

Answer:

Restriction enzymes (endonucleases) are used to cut the DNA into fragements.

Explanation

Restriction enzymes are obatained from bacteria where they are utilized by bacteria for protection against viruses. Restriction enzymes are used in biotechnology research. There are several restriction enzymes and each cut the DNA at specific site known as recognition site which is usually 4-8 neucleotide long. They produce sticky ends (cutting the both DNA strand on different site) and blunt ends (cutting the both DNA strand on same site) on DNA fragments.

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Please help me!! 15 points!!!!!
Karolina [17]

Image 1.1 -

Stomata are little moth-like structures in leaves, that, when open, allow the exchange of gases between the plant and the exterior.

Answer:

B.

Image 1.2 -

Without the existance of stomata, the process of transpiration wouldn't be possible if there weren't structures thata allowed the exchange of gases.

Answer:

A.

Image 2 -

So, we can elminate plants because they can photosynthesise; bacteria because they are prokaryotes and can photosynthesise; archaea because they are prokaryotes; hat leaves us with animals and fungi because these cannot photosynthesise and are both eukaryotes.

But, we cannot skip information. It is also said that the organism found has a cell wall, and animals do not have cell walls.

Answer:

C.

Image 4 -

Option 1 = cilia

Option 2 = flagella

Option 3 = pseudopods

Option 4 = pili (they're a meant to attacht to surfaces only bacteria)

Image 5 -

Runner stems are those that grow horizontally, therefore the fourth image with the long horizontal stems.

Rhizome stems are underground stems that can form roots or shoots through their nodes. Therefore, the third image with white background (the one with 2 drawn plants).

Tuber stems are large underground (mostly) structures used as storages for the plant. Therefore, this corresponds to the first image (the one with the white background.

Bulb stems are short and "bulby" stems, whith thick, leaves. Therefore, the second image (the one with the grass background).

Hope it helped,

BioTeacher101

7 0
3 years ago
Coyotes and dogs have been placed into different species. however, they can mate and produce viable, fertile offspring. what wou
Ostrovityanka [42]
That fact can be explained by the similarity in their genes. 

Dogs and coyotes are from the same class, family and genus (Mammalia, Canidae, Canis).
This is almost enough for their offspring to be viable. But if the DNA is similar (which it is) offspring the chances of viable and fertile offspring is high almost at 100%.

Hope it helped,

Happy homework/ study/ exam!
8 0
3 years ago
Coat color in cats is a codominant trait and is also located on the X chromosome. Cats can be black, orange or calico. A calico
adell [148]

Answer:

The males can only either be black or orange

Explanation:

There can be no male calico because for an offspring to be a calico the two codominant alleles must each be carried on the two X chromosomes and in the males, there is the presence of just one X chromosomes, thus they can either be black or be orange. For the females, the can only be black if they carry the black allele on both X chromosomes, the same goes for the orange.

Parents                          XB            Y

    XB                          XBXB        <u>XBY</u>

    XC                          XCXB       <u> XCY </u>      

XBY- black male

XCY- orange male          

7 0
3 years ago
At the complete end of cellular respiration, how many molecules of ATP are produced
Vlad1618 [11]

Answer:

38 ATP

Explanation:

On complete oxidation of one molecule of glucose yields 38 ATP.  Break up of energy production is given below:  

  • During glycolysis 2 ATP and 2 NADH is produced.
  • During formation of Acetyl CoA, 2 NADH is produced.  
  • During Citric Acid Cycle, 2 ATP, 6 NADH, 2 FADH₂ are produced.  

Finally during Electron transport chain, reduced coenzymes NADH and FADH₂ oxidised to release ATP. Each NADH produce 3ATP and each FADH₂ produces 2 ATP. Altogether 10 NADH is produced during entire process of cellular respiration which yield 30 ATP and 2 FADH₂ yields 4 ATP. Therefore, on complete oxidation of one molecule of glucose yields 38 ATP.

7 0
3 years ago
Read 2 more answers
You are assessing a client recently admitted to your unit for hypotension. while assessing this client, you find a pulsatile mas
Sladkaya [172]
Your answer would be Aortic aneurysm
3 0
3 years ago
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