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nordsb [41]
3 years ago
6

Why is this a neutral mutation ?

Biology
1 answer:
Pie3 years ago
8 0

Answer:

Neutral mutation means that the mutation that changes the sequence of polyneuclotides in DNA didn't result in a change in sequence of Amino acids in protein product OR mutation results in the change of amino acid sequence in a non crucial region in the protein product, leading to no change in shape and function of protein product.

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Name two examples of catastrophic events which could lead to a mass extinction?
Lemur [1.5K]

Asteroid impact

Volcanic eruptions

Explanation:

Asteroid impact and volcanic eruptions are two common events that could lead to a mass extinction.

A mass extinction is an abrupt decrease in life on earth due some catastrophic event.

  • The collision of a large bolide on the surface of the earth is a catastrophe in itself.
  • The collision and its aftermath have destructive consequences on life.
  • The force of the collision can reverberate in form of vibration throughout the earth.
  • It can cause heating of the earth surface.
  • Volcanic eruptions can become global phenomenon that upsets the earth balance.

Learn more:

Extinction brainly.com/question/10860460

#learnwithBrainly

8 0
3 years ago
(WORTH 30 POINTS!!!) Choose the answer that best describes the geologic process that contributes to the formation of fault-block
lukranit [14]

B) The Earth's crust is pulled apart creating deep folds and then pushed together generating steep scarps to create fault-block mountains

7 0
2 years ago
Movement of the chromosomes during anaphase would be most affected by a drug that
My name is Ann [436]

Answer:

The options are missing, the options are:

A) prevents the duplication of centrosomes. B) prevents nuclear envelope fragmentation C) prevents shortening of microtubules. D) prevents attachment of the microtubules to the kinetochore. E) prevents nucleosome formation

The answer is C

Explanation:

Cell division is a characteristics of all living cells. Whether meiosis or mitosis, the chromosomes separate in the Anaphase stage. Prior to the anaphase stage is the metaphase, where spindle microtubules attach to the kinetochores of each chromosome and aligns them at the centre of the cell called METAPHASE PLATE.

Thus, since the aligning of chromosomes at the metaphase plate has to do with attachment of microtubules to chromosomes' kinetochores, the drug that will hinder movement of chromosomes to opposite poles will not stop formation of microtubules. Instead, it will prevent the formed microtubules attached to each chromosome from shortening, as it is the shortening of microtubules that facilitates the pulling apart of the chromosomes they are attached to.

4 0
3 years ago
The starfish's water-vascular system is used for locomotion and capturing food. True/False
Ymorist [56]

Answer:

true

Explanation:

3 0
2 years ago
Professional gardeners often soak seeds in hydrogen peroxide before planting them. Why?
prisoha [69]

Answer:

Professional gardeners often soak seeds in hydrogen peroxide before planting them in order to increase the germination percentage or to reduce germination failure. When the seeds are soaked in hydrogen peroxide, the seed coat becomes soft and enzymes present in the seed becomes active. Due to soaking of seeds, the seed takes less time to germinate. So that's why gardeners uses this method.

5 0
2 years ago
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