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Nat2105 [25]
3 years ago
12

How does nail growth work?

Biology
1 answer:
e-lub [12.9K]3 years ago
8 0
Basically, there is a root. This root makes cells. Those cells die and multiply making your nail longer.  
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Plant reproduction by tissue culture differs from reproduction by meristem culture because
Leviafan [203]

The answer is; B

Meristem cells are totipotent meaning they can differentiate to any type of plant cells. Therefore they can produce a variety of plant type depending on epigenetic. However, tissue culture is derived from already differentiated cells. Therefore these cells are already determined and can only produce cell type of that plant from which they were derived.    


4 0
3 years ago
During anaphase II in Meiosis, what major event takes place Question 26 options: Sister chromatids are pulled apart. Chromosome
baherus [9]

Answer:

The correct answer is A.) Sister chromatids are pulled apart.

Explanation:

This is because during Anaphase II in Meiosis, the sister chromatids are pulled apart.

Chromosome pairs line up during Prophase I. <em>Not B.</em> When the chromosome pairs pair up this is also Metaphase I. <em>Not C.</em> When chromosome pairs are pulled apart, Anaphase I is occurring.

Hope this helps,

♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥

8 0
3 years ago
What determines the type of fossil that is formed?
Kay [80]
A. The conditions under which the organism died and how it was buried.



Reason for Answer: This is because fossils are used to determine the relative age of sedimentary rocks and are used to provide information on past climates, environments, and many more.
6 0
3 years ago
Read 2 more answers
As he is male, paulo has higher levels of the hormone testosterone in his body than his sister liette. given paulo's higher test
Vinvika [58]

<span>Being male, the levels of the hormone Testosterone is higher in Paulo’s body than in his sister, Liette’s body. As a result of the higher testosterone levels in Paulo’s body, it’s reasonable to expect him to experience greater physical aggression than his sister.</span>

5 0
2 years ago
How many different offspring genotypes are expected in a trihybrid cross between parents heterozygous for all three traits when
aalyn [17]

Answer:

27 genotypes and 8 phenotypes

Explanation:

Supposing that the genotypes of both of the parents are AaBbDd (A, B and D are dominant over a, b and d).  After completing the Punnett square, you can predict the following offspring:

I add an image where you can see all the 27 genotypes and frequencies.

Finally, all the 8 phenotypes with the following frequencies:

27/64 A-B-D-

9/64   A-B-dd

9/64   A-bbD-

9/64   aaB-D-

3/64   A-bbdd

3/64   aaB-dd

3/64   aabbD-

<u>1/64    aabbdd </u>

Total 64/64

Note: when a phenotype is A-, it means that it came from either genotype, AA or Aa. The same applies to B- (BB or Bb) and D- (DD or Dd)

3 0
2 years ago
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