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3 years ago

How are frame-shift mutations different from simple point mutations? How can any of these mutations occur?

Biology

1 answer:

elena-s [515]3 years ago

3 0

Answer:

The changes in the single base or nucleotide in the nucleotide sequence and thus changing its complementary base also it is called as point mutations, while when there are insertions or deletions of more than one base pair in the nucleotide sequence it is known as frameshift mutations.

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PLEASE HELP this is a free response question.

Mariana [72]

Answer:

oxygen is an element and water is a compound

Explanation:

oxygen is made up of two atoms and water is made up of two elements

7 0

3 years ago

Displacement of brain tissue under the falx cerebri or through the tentorial notch of the tentorium cerebelli is termed ____, an

algol13

Brain herniation is displacement of brain tissue under the falx cerebri under the area of less pressure.

Brain herniation

Less

<u>Explanation:</u>

Brain herniation is disorder it occur due to the displacement of the cerebra in the brain. It is potentially deathly disorder when brain affected by high temperature or squeezing of the brain across the structure.

The tentorium is the dual fold in the brain, then it is an extension of the dura matter that separates cerebellum from cerebrum. There are two major types of herniation in the brain; that is supratentorial and infratentorial. The supretentorial is seen above the Tentorial notch.

3 0

3 years ago

Helpppppp HAHAHAHHAHA IM STRUGGLING

OlgaM077 [116]

Answer:

Option D = 3.4 g/mL

Explanation:

Given data:

Volume of water = 21.2 mL

Volume of water + object = 27.8 mL

Mass of object = 22.4 g

Density of object = ?

Solution:

First of all we will calculate the volume of object.

Volume of object = Volume of water+ object - volume of water

Volume of object = 27.8 mL - 21.2 mL

Volume of object = 6.6 mL

Density of object:

d = m/v

d = 22.4 g/ 6.6 mL

d = 3.4 g/mL

4 0

3 years ago

I. Match the following.

dezoksy [38]

1. a minus-charged particle of an atom..... Electrons

2. a neutral (no charge) particle found in the nucleus of an atom..... Neutrons

3. a positive-charged particle in the nucleus of an atom.... Protons

4. a system of comparing atomic masses to carbon.... Relative mass

II. The atomic number of an atom is equal to the number of Protons.

III. The atomic number is always equal to the atomic mass. False.

IV. Atomic mass minus atomic number =number if neutrons.

V. A proton in the nucleus of an atom has an electrical charge of: +ve (positive).

VI. The atomic number of calcium is 20. This number means that calcium has 20 protons. The atomic mass of calcium is 40. How many neutrons does calcium have?

Answer: No of neutrons = atomic mass-atomic number

No of neutrons= 40-20=20 neutrons.

VII. Helium has an atomic number of 2. This number also means that helium has 2 protons. The atomic mass of helium is 4. How many neutrons does helium have?

Answer: No of neutrons = atomic mass-atomic number

No of neutrons= 4-2=2 neutrons.

VIII. The relative atomic mass of a proton or neutron is 1.

IX. The relative atomic mass is always a mass that is compared to the element Corbon.

X. Name the three kinds of sub-atomic particles found in an atom: electron, proton and neutron

4 0

3 years ago

Neutrophils are the most abundant phagocytic cells. how do they differ from other phagocytic cells?

Lynna [10]

<span>Answer: Macrophages- WBC that combat multi-cellular parasites. Neutrophils- most abundant type of WBC which identifies and produces antibodies.</span>

7 0

3 years ago