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Nastasia [14]
3 years ago
12

The diploid generation of the plant life cycle always _____.

Biology
1 answer:
timofeeve [1]3 years ago
4 0

Answer: Option A

The diploid generation of plant life cycle produce spores.

Explanation:

In plant life cycle, the fusion of two gametes(male and female) result to diploid sporophyte cells.The diploid sporophyte cells undergo meiosis to give haploid spores. The haploid spores undergo mitotic cell divisions to produce a multicellular, haploid gametophyte. The mitotic division of gametophyte will produce gametes.

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Answer:

The nitrogenous bases in DNA are adenine (A), guanine (G), thymine (T), and cytosine (C).

Explanation:

8 0
3 years ago
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Some autoimmune disorders are thought to be caused by _________, which occurs when an infectious agent is composed of antigens w
EastWind [94]

Answer: adaptive immune response

Explanation:

Autoimmune disorders are caused by different microoorganism and drug which manipulates the immune system in a way that immune system become unable to recognise between self antigen and foreign antigen. In that case immune system treats foreign antigen as self antigen which cause systemic or organ specific damage.

The exact cause of autoimmune disorders is unknown and hence it is  thought that it is caused by adaptive immune response which builds against self antigens and causes damage to the cells.

Hence, some autoimmune disorders are thought to be caused by adaptive immune response.

4 0
3 years ago
What is the difference between loose and dense connective tissue
ASHA 777 [7]

Answer:

Difference Between Loose and Dense Connective Tissue

• Large proportion of ground substance and cells can be found in loose connective tissue,...

• Few loosely arraigned fibers can be found in loose connective tissue,...

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Explanation:

please mark as brainleist

7 0
3 years ago
Need help with biology
padilas [110]

Answer

Hi,

A. Radioactive markers

Explanation

Hershey and Chase used specific radioisotopes to form a trace of the two important components of the virus in its life cycle. The 32P was used to identify the DNA while the 35s labeled the proteins.DNA strands have a sugar phosphate where as protein contains sulfur.

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8 0
2 years ago
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The first division of meiosis is called a reduction division. This is because
katen-ka-za [31]

The correct answer is: the mother cell is diploid, but the products of the first division are haploid.

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•  meiosis II – Separation of sister chromatids.

7 0
3 years ago
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