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igor_vitrenko [27]
4 years ago
5

The blood-brain barrier is made up of

Biology
1 answer:
iVinArrow [24]4 years ago
8 0

the answer is c. microglial extensions and capillary endothelial cells.

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Natural selection is most likely to have different effects on organisms with which pair of alleles
____ [38]
The answer would be the one with the least dominant trait ( but not the one who have none)

for Example : Aa x aa

This pair of alleles will most likely to have diffrent effects on Organism ,

Aa : aa = 50 : 50
3 0
3 years ago
Match the following enzymes involved in DNA replication with their functions.
spin [16.1K]

Answer:

DNA ligase is an enzyme which can connect two strands of DNA together by forming a bond between the phosphate group of one strand and the deoxyribose group on another.

DNA polymerase is an enzyme that synthesizes DNA molecules from deoxyribonucleotides, which are the building blocks of DNA. The enzymes play an essential role in DNA replication, usually working in pairs to produce two matching DNA stranges from a single DNA molecule.

DNA gyrase is an essential bacterial enzyme that catalyzes the ATP-dependent negative super-coiling of double-stranded closed-circular DNA

Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.

Explanation:

6 0
3 years ago
Which elements are found in living things?
dexar [7]

Answer:

Major element

Explanation:

The six most common element are living thing carbon,hydrogen,oxygen,nitrogen,phosphorus and sulfur.

7 0
3 years ago
1. What is the difference between primary waves (P-waves) and secondary waves (S-waves)?
Yuliya22 [10]

Answer:

Explanation:

Primary waves travel faster, move in a push-pull pattern, travel through solids, liquids and gases, and cause less damage due to their smaller size. Secondary waves travel slower, move in an up-and-down pattern, travel only through solids, and cause more damage due to their greater size.

4 0
3 years ago
What is the difference between DNA of a stomach cell and the DNA of a brain cell?
FinnZ [79.3K]

Answer:

they have different functions

Explanation:

the stomach cells breakdown food and make up a certain tissue and take nutrients from the food you eat while the brain cell makes up your neurons and receptors

7 0
3 years ago
Read 2 more answers
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