Sexual Reproduction
Muhtasari
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.
Malengo
- 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
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Sexual Reproduction. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- 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
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Sexual Reproduction? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
