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svetoff [14.1K]
3 years ago
14

Which statement gives an example of asexual reproduction (A.a new potato plant grows from a potato (B.two worms mate and produce

more worms (C. An apple seed is produced from pollinated flowers (D. Butterflies have genetic information from both parents
Chemistry
2 answers:
Svetradugi [14.3K]3 years ago
5 0
Asexual reproduction involves the production of offspring without the need for a secondary partner to contribute genetic information.

Pollination and mating are two forms of sexual reproduction, so B, C, and D are incorrect. A, because the new potato grows directly from the old without the contribution of new genetic material, asexually reproduces.
Pachacha [2.7K]3 years ago
4 0

Answer:

(A) a new potato plant grows from a potato

Explanation:

Asexual reproduction is the kind of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.

In the case of a potato plant growing from the main potato, the singled parent potato is responsible for the development of the new offspring and  determines the genetic make up of the new plant and subsequent potatoes. In the particular scenario, their is no fusion of gametes  and this form of reproduction is not sexual.

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The mass of a deuterium nucleus 21H is less than its components masses. Calculate the mass defect.________ amu
Inessa [10]

Answer:

The mass defect of a deuterium nucleus is 0.001848 amu.

Explanation:

The deuterium is:

^{A}_{Z}X \rightarrow ^{2}_{1}H  

The mass defect can be calculated by using the following equation:

\Delta m = [Zm_{p} + (A - Z)m_{n}] - m_{a}

Where:

Z: is the number of protons = 1

A: is the mass number = 2      

m_{p}: is the proton's mass = 1.00728 amu  

m_{n}: is the neutron's mass = 1.00867 amu

m_{a}: is the mass of deuterium = 2.01410178 amu

Then, the mass defect is:

\Delta m = [1.00728 amu + (2- 1)1.00867 amu] - 2.01410178 amu = 0.001848 amu

Therefore, the mass defect of a deuterium nucleus is 0.001848 amu.

I hope it helps you!  

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