O LevelBiologyCambridgeExam Questions16. Development of Organisms & Continuity of Life16.2 Asexual & Sexual Reproduction

Asexual & Sexual Reproduction (Cambridge O Level Biology)

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16.2 Asexual & Sexual Reproduction

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16.2 Asexual & Sexual Reproduction

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The statements E to K relate to the process of reproduction. 

E produces genetically identical offspring 

F produces more individuals of the same species 

G always involves only one parent 

H involves fusion of nuclei 

I requires gametes 

J forms a diploid zygote 

K involves only cell division by mitosis

Table 1 shows a comparison of sexual and asexual reproduction. 

Complete Table 1 by writing each letter in the correct box to match it to sexual reproduction only, asexual reproduction only, or to both. 

The first letter has been written in the correct box for you. Use each letter once only.

Table 1

sexual
reproduction only		 asexual
reproduction only		 both sexual
and asexual
reproduction
  E




  

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1
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Some insects can reproduce by sexual reproduction and asexual reproduction. In both types of reproduction chromosomes are passed from the parent or parents, to the offspring.

Fig. 1 shows a drawing of a parent insect and seven of her offspring: M, N, P, R, S, T and U.

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Fig. 1

(i)

Two of the offspring were produced by asexual reproduction.

Suggest the letters representing these two offspring.

[1]

(ii)

Insect R was produced by sexual reproduction.

Use the information from the diagram to support this statement.

[1]
(iii)

State the term that is defined as the observable features of an organism.

[1]

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2
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Sugarcane is a crop plant that is usually grown from stem cuttings rather than from seeds.

Describe the advantages of using cuttings rather than seeds to reproduce crop plants.

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