Sciences - Co-ordinated (Double) - 0654 CIE

Asexual Reproduction

Gbogbo ọrọ náà

A strawberry plant can send out a runner that takes root and becomes a whole new plant, identical to its parent. A single bacterium can split into two every twenty minutes. Neither needs a partner, because this is asexual reproduction, making copies from just one parent.

In this lesson you will learn exactly what asexual reproduction is, recognise examples of it, and (for the extended curriculum) weigh up its advantages and disadvantages, both for wild populations and for growing crops. Understanding why identical offspring can be both a strength and a weakness is the heart of this topic.

Ebumnobi

  1. Describe asexual reproduction as a process resulting in the production of genetically identical offspring from one parent
  2. Identify examples of asexual reproduction in diagrams, images and information provided
  3. [Supplement] Discuss the advantages and disadvantages of asexual reproduction: (a) to a population of a species in the wild (b) to crop production

Nkuzi Olu

Gee ntị na nkuzi a na ngwa

Maapụ uche

E seela isiokwu a ka ị hụ otu echiche si ejikọta.

Mepee maapụ uche na ngwa

Kaadị ncheta

Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.

Mee omume kaadị ndị a na ngwa

Akwụkwọ Ọmụmụ

Asexual reproduction lets organisms multiply quickly without a mate, which is useful for farmers wanting uniform crops but risky for a population facing a new disease. Comparing its pros and cons is a classic extended-tier exam question, and it sets up the contrast with sexual reproduction in the next topic.

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Nnyocha Ọmụmụ

Ekele diri gi maka imecha ihe karịrị na Asexual Reproduction. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.

Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.

Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.

  1. Asexual reproduction produces offspring that are: A. genetically different from the parent B. genetically identical to the parent C. always larger than the parent D. produced from two parents Answer: B
  2. How many parents are involved in asexual reproduction? A. none B. one C. two D. three Answer: B
  3. Which of these is an example of asexual reproduction? A. fertilisation of an egg by a sperm B. a strawberry plant producing runners C. pollination of a flower D. fusion of two gametes Answer: B
  4. A group of genetically identical individuals from one parent is called a: A. species B. population C. clone D. gamete Answer: C
  5. A disadvantage of asexual reproduction is that the offspring: A. need a mate B. show no variation C. are always weaker D. cannot grow Answer: B

Rue ajuju ndi a n'ime ngwa ahu

Rue ajuju ndi a n'ime ngwa ahu

Meecha Ajụjụ Ule Ọmarịcha

Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Asexual Reproduction? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.

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