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trasher [3.6K]
2 years ago
12

Why do you think it is important for a cell to grow before it replicates its DNA? Be as specific as you can in your answer

Biology
2 answers:
Flauer [41]2 years ago
5 0

Answer:

Basically, every time a cell undergoes mitosis (one kind of cell division), various enzymes work to split each DNA strand in half, and then replace the missing half on the separated strands with corresponding nucleotides, leaving you with two identical strands. When the entirety of a cell's genome is copied (along with all the organelles), the cell can split into two daughter cells.

Imagine slicing yourself down the middle and splitting yourself in half, and then using each half of you as a template to recreate the other half.

That's the biology behind it, but the bottom line is that DNA is replicated in order to reproduce itself.

Explanation:

hodyreva [135]2 years ago
4 0
Dna replication needs to occurs because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. so the dna needs to be copied before cell division so that each new cell receives full set of instructions. - Google
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One characteristic of all living organisms is that they have genetic information. What is the name of this genetic information a
Aloiza [94]

Answer:

344

Explanation:

34235

6 0
2 years ago
Rhonda Runsalot is a 20 year old woman. She is running at VO2max. Her heart rate is 200 b/min. Her stroke volume is 100 ml blood
katen-ka-za [31]

Answer:

Cardiac output = 20 L/min

Explanation:

The cardiac output of a person refers to the volume of blood the heart pumps in a minute. The normal range for cardiac output is about 4 to 8 L/min. However, this can vary depending on the metabolic needs of the individual at any instant of time, for example, it is higher when exercising than  when resting.

Cardiac output is calculated from the product of the stroke volume in liters/min and the heart rate in beats/min

Cardiac output  = stroke volume * heart rate

For the individual who is running; stroke volume = 100 mL/beat or 0.1 L/beat

heart rate = 200 beats/min

Cardiac output =0.1 L/beat * 200 beats/min

Cardiac output = 20 L/min

6 0
2 years ago
Pls, help me I only have 5 min​
Sophie [7]

Answer:

I think the last answer D

4 0
3 years ago
Which of the following tools helps in the visualization of DNA inside a cell?
JulijaS [17]

Answer:

dont pay me no mind I'm only answering to win points but the tutor helped me they can help you to

4 0
2 years ago
Calculate the mass defect for oxygen-16 given this data. Round to the 5es001-1.jpg decimal place. mass of an oxygen-16 atom: 15.
Naya [18.7K]

Answer:

Explanation:

Given parameters:

Mass of oxygen atom = 15.994914amu

Mass of a proton = 1.00728amu

Mass of a neutron = 1.00866amu

Unknown:

Mass defect = ?

From the periodic table, the number of the elementary particles in a neutral Oxygen atom is given below:

           Number of protons = 8

           Number of neutrons = 8

          Number of electrons = 8

Solution

The mass defect examines the difference between the actual mass of an atom and sum of masses of the nucleons.

The mass of an atom is concentrated in the nucleus which contains protons and neutrons. Electrons have little to no weight compared with the nucleons.

    To calculate the mass defect, we first know the mass of the nucleons first:

           1 proton has a mass of  1.00728amu

           8 protons will weigh: (8 x 1.00728)amu = 8.05824amu

For the neutrons:

          1 neutron has a mass of 1.00866amu

          8 neutrons will weigh: (8 x 1.00866)amu = 8.06928amu

Mass of the nucleons = mass of protons + mass of neutrons

                                   = 8.05824amu + 8.06928amu

                                   = 16.12752amu

The mass defect = mass of the nucleons - mass of the atom

                             = 16.12752amu - 15.994914amu

                              = 0.132606amu ≅ 0.13261amu to 5 decimal places

6 0
3 years ago
Read 2 more answers
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