Heredity And Genetics
Bayani Gaba-gaba
Two parents with brown eyes can have a blue-eyed child; two parents of blood group A can have a child of blood group O; a condition can appear in a grandson but skip his mother entirely. None of this is random chance. It follows directly from how alleles are inherited, and a genetic diagram lets you predict it with confidence.
This lesson covers the vocabulary of inheritance, how to use genetic diagrams to predict the outcomes of a cross including sex determination and multiple-allele traits such as blood group, how to read a family pedigree, and the inheritance of named genetic conditions including one, cystic fibrosis, that can now be treated with gene therapy.
Manufura
- Know that genes exist in alternative forms called alleles which give rise to differences in inherited characteristics
- Know the meaning of the terms dominant, recessive, homozygous, heterozygous, phenotype, genotype, co-dominance, diploid and haploid
- Know that the sex of a person is controlled by one pair of chromosomes, XX in a female and XY in a male
- Explain how the sex of offspring is determined at fertilisation using a genetic diagram
- Understand that random fertilisation produces genetic variation of offspring
- Understand the role of multiple alleles in the inheritance of ABO blood groups
- Understand patterns of monohybrid inheritance using a genetic diagram and the probabilities of outcomes
- Understand how to interpret family pedigrees
- Describe the causes and effects of inherited conditions such as haemophilia and red-green colour blindness (sex-linked inheritance), polydactyly (dominant allele) and cystic fibrosis (recessive allele)
- Describe how gene therapy with viruses can be used to treat cystic fibrosis
- Understand that variation within a species can be genetic, environmental or a combination of both
Takardar Darasi
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Nazarin Darasi
Barka da kammala darasi akan Heredity And Genetics. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- An individual with genotype Bb for a gene is described as: A) Homozygous dominant B) Homozygous recessive C) Heterozygous D) Co-dominant Answer: C
- Which genotype gives blood group AB? A) I^A I^A B) I^A i C) I^A I^B D) ii Answer: C
- Polydactyly is caused by which type of allele? A) Recessive B) Dominant C) Co-dominant D) Sex-linked recessive Answer: B
- Why are sex-linked recessive conditions more common in males? A) Males have two X chromosomes B) Males have only one X chromosome, so a recessive allele is not masked C) The Y chromosome carries the recessive allele D) Males cannot be carriers Answer: B
- Gene therapy for cystic fibrosis typically delivers a working gene using: A) A bacterium B) A harmless virus C) A plasmid injected into the blood D) Radiation Answer: B
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Akwai a cikin manhajar Green Bridge
Zazzage manhajar Green Bridge CBT a wayar ka ko kwamfyuta ka don samun cikakkiyar bayanan darasi, tambayoyin aiki, da ƙari.
Littattafan da ake ba da shawarar karantawa
Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Heredity And Genetics? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
Sauke Manhajar Daga Google Playstore
Duk abin da kake buƙata don yin fice a JAMB, WAEC & NECO.
