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3 years ago

TMV destroys chloroplasts in the leaf . Explain how this could affect the growth of the plant .

1 answer:

7 0

Chloroplasts in the plants can accumulate high levels of toxic singlet oxygen, a reactive oxygen species formed during photosynthesis. Destroyed chloroplast makes the plant wither up and probably die because the plant's chloroplasts are the considered as the nutrient makers. The Chloroplast turns light into energy and without energy it will not be converted to sugar. Since they are the only thing in nature that is able to covert energy to sugar, it would greatly affect the process and affects growth of the plant which are food and oxygen producer so probably human would also run out of food and Oxygen.

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I nee help brinlist i will give it to you

Montano1993 [528]

Answer:

Explanation:

The energy carried by electromagnetic waves is sometimes referred to as radiant energy. Electromagnetic waves do not require a medium for propagation hence they can travel through vacuum and are known to transmit enormous amount of energy.

Electromagnetic waves transmit energy away from the source of the wave. Hence the answer chosen in the answer section above.

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3 years ago

Indicate whether each of the following phosphorylation events typically activates (A) or inactivates (I) the protein that is bei

Airida [17]

Answer:

<h2>Phosphorylation and dephosphorylation plays an important role in activating or inhibiting different proteins.</h2>

Explanation:

1. When Cdc25 is phosphorylated by M-Cdk, it activates the CdC25. It acts as checkpoint from G1 to S and G2 to M.

So, the correct answer is activates (A).

2. Phosphorylation of condensins by M-Cdk, degrades the condensin and begins the decondensation of chromosomes. That means it inactivates the condensin.

So, the correct answer is Inactivates (I).

3. Phosphorylation of APC/C activates it and then CdC20 can bind to it and then cell will progress through anaphase.

So, the correct answer is Activation (A).

4. Phosphorylation of Ndc80 by Aurora-B leads to binding of NdC80 to kinetochore and recruits the Ska complex at kinetochore.

So the correct answer is activates (A).

So, four-letter string is AIAA.

3 0

4 years ago

Imprinting is a type of _______ behavior.<br> A.inherited<br> B.learned<br> C.reflex<br> D.instinct

grin007 [14]

Answer:

I think it is Learned

Explanation:

Hope this helps

5 0

3 years ago

Read 2 more answers

Briefly summarize the "base-pairing rule"

UNO [17]

These pairs are found in double strand of DNA and RNA where the bonds between them connect the two strands making the double stranded structures possible.

4 0

3 years ago

Describe how Mendel's two laws are illustrated by the movement of chromosomes in meiosis. Drag the terms on the left to the appr

nirvana33 [79]

Answer:

1. law of Independent Assortment; metaphase I; independent of.

2. law of Segregation; meiosis I; in separate gametes.

Explanation:

Between 1856 and 1863, Gregor Mendel developed a series of mating experiments using pea plants, which enabled the discovery of some basic principles of inheritance. These principles/laws are stated as:

1) Law of segregation: this principle states that the inheritance pattern of phenotypic traits is characterized by the presence of a gene pair and each gamete carries only one allele for each gene pair so offspring inherit one gene variant (allele) from each parent

2) Law of independent assortment: this principle states that the genes responsible for the inheritance pattern of different traits are independently sorted from one another and thereby different traits are independent one from another.

3) Law of dominance: this principle states that the dominant allele will always be expressed in heterozygous individuals (this law is only applicable in cases of complete dominance).

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3 years ago