Question

As a result of a mutation, the DNA sequence AGT - TGA - CAT changes to AAT - TGA - CAT.

Answer 1

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d.Q4) With the help of clues given in the box, complete the paragraph.

(cool, medicines, save, many gifts, cutting them, rubber, different

kinds, planting more trees, food, soil erosion, floods, protect,

increased pollution, fruits, green, clean, rain, wood, shelter,

responsible citizens, paper, useful, important to us, global, oxygen,)

Nature has given us ____________________ . One of them is __________. Trees are

of ____________________ .They are ___________________________ because they

_____________________________________ things.

Trees ______________ our surrounding and make it ________ and

_________. They give us _____________ to breathe. We obtain many products

from trees like _______ , ___________ , _____________ , ______________ , ________

for making furniture and many other __________ things. They reduce pollution

and bring _________ .Wild animals depend on trees for ___________ and

__________ . Birds _____________________ on trees.

If we do not _________ trees it will lead to ___________________level,

__________ , _____________________ and ____________ warming. So let us all be

______________ ___________ and __________ trees by not _____________________and by .............................!

Answer 2

the change in the DNA sequence is due to the point mutation.

Explanation:

• Point mutation is a type of mutation which takes place if there is a change in only one type of nucleotides sequence.

• Here the nucleotides change that has been followed is that adenine is replaced by guanine. As a result of this there will be a change in the the protein that will be translated by the corresponding RNA sequence.

• this results in a change in the characteristics of the organism.

• Point mutation usually occurs when the cell is exposed to radiation, chemical and physical injuries and after it has been attacked by certain microorganism such as some oncogenic viruses.

To know more about point mutation,

Which is a point mutation?

https://brainly.in/question/6478344

Which is a point mutation? - Brainly.in

https://brainly.in/question/9196365