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2 years ago

Which of the following statements correctly relates mutations and survival rates of animals?

Biology

2 answers:

WITCHER [35]2 years ago

7 0

Ans.

Mutations can be defined as permanent alterations in genetic material that pass from mutant parent cell to its daughter cells. Mutations may be beneficiary, harmful, or neutral depending upon the function affected.

For examples, adaptations to certain environmental conditions that provide better chances of survival to the organisms are resulted from mutations, while may disorders, such as cancer are also called by mutations.

Thus, the correct answer is option). 'mutations sometimes improve the chances of survival for an animal.'

Katarina [22]2 years ago

5 0

<span>Mutations sometimes improve the chances of survival for an animal.
But rather rarely. Advantageous mutations do happen, but neutral and harmful mutations are way more common.
</span>

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A newborn baby has a soft spot on the top of its head. over the next few months, the soft spot gradually hardens. what explains

GREYUIT [131]

A new born has soft spot on he top of its head. This is called as fontanelle and is diamond in shape present on the top of the head of the baby.

Babies skull is very soft and can be very easily moulded, to help them squeeze through the birth canal at the time of delivery.

Moulding is done in the skull of the babies as it is most largest part of the body during the time of delivery.

As soon as the skull and bones of the baby meet and fuse they become hard gradually.

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NEED BIO HELP ASAP 30 POINTS !!!!!!!!!!!!!!!!!!!!!!

alexandr402 [8]

1. Cell starts into mitosis phase of the cell cycle.

2. Helicase begins to break the hydrogen bonds between the nitrogen bases. (The double helix has to be unwound in order to expose the nucleotides)

3. DNA polymerase attach the free-floating nucleotides to the exposed nitrogen bases. (this allows a new DNA strand to be made on the existing one)

4. Free floating nucleotides pair up with exposed nitrogen bases (this is what really builds the new strand, based around the template strand)

5. Two new molecules of DNA are created

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Adenine

Cytosine (Car in the Garage, Apple in a Tree is a good trick to know how they pair)

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Replication

Double helix

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