Sexual Reproduction
Akopọ
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.
Awọn Afojusun
- 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
Akọ̀wé Ẹ̀kọ́
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Ìdánwò Ẹ̀kọ́
Oriire fun ipari ẹkọ lori Sexual Reproduction. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- 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
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
O wa lori ohun elo Green Bridge
Gba ohun elo Green Bridge CBT sori foonu tabi kọmputa rẹ lati ri awọn akọsilẹ ẹkọ ni kikun, awọn ibeere adaṣe, ati diẹ sii.
Awọn Iwe Itọsọna Ti a Gba Nimọran
Ṣe Adaṣe Awọn Ibeere Idanwo Adaṣe
Ṣe o fẹ ṣe adaṣe awọn ibeere idanwo adaṣe nipa Sexual Reproduction? Ṣe igbasilẹ ohun elo Green Bridge CBT lati wọle si awọn ibeere idanwo adaṣe ati awọn ayẹwo adaṣe kikun fun koko-ọrọ yii.
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