Sexual Reproduction
Gbogbo ọrọ náà
No two brothers or sisters are exactly alike, even with the same parents. That variety is the hallmark of sexual reproduction, where two special cells from two parents join and mix their genes to make a unique new individual.
In this lesson you will learn what sexual reproduction is, what fertilisation means, and (for the extended curriculum) how gametes are haploid while the zygote they form is diploid. You will also weigh up the advantages and disadvantages of producing varied offspring, both in the wild and in crop production.
Ebumnobi
- Describe sexual reproduction as a process involving the fusion of the nuclei of two gametes to form a zygote and the production of offspring that are genetically different from each other
- Describe fertilisation as the fusion of the nuclei of gametes
- [Supplement] State that nuclei of gametes are haploid and that the nucleus of a zygote is diploid
- [Supplement] Discuss the advantages and disadvantages of sexual reproduction: (a) to a population of a species in the wild (b) to crop production
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Sexual 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.
- Sexual reproduction involves the fusion of the nuclei of: A. two body cells B. two gametes C. one gamete and one body cell D. two zygotes Answer: B
- Fertilisation is defined as the: A. division of a body cell B. fusion of the nuclei of gametes C. growth of a zygote D. production of spores Answer: B
- The nucleus of a gamete is: A. diploid B. haploid C. has no chromosomes D. has double the chromosomes Answer: B
- A zygote is formed when two gametes fuse. The zygote nucleus is: A. haploid B. diploid C. has no nucleus D. identical to one parent Answer: B
- An advantage of sexual reproduction is that the offspring show: A. no variation B. variation C. identical genes D. fewer chromosomes than the parents Answer: B
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Sexual Reproduction? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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