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Intervensi biology Form 5 chapter 5

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Intervensi biology Form 5 chapter 5

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Intervensi biology Form 5 chapter 5

  1. 1. INTERVENTION – BIOLOGY CHAPTER 14 CHAPTER 14 : INHERITANCE 1. State the definition of the following terms by choosing the correct definition from table 1. a. Genotype :………………………………………………………………………. b. Phenotype :……………………………………………………………………… c. Allele :………………………………………………………………………….. d. Gene :…………………………………………………………………………… e. Heterozygote :…………………………………………………………………… f. Homozygote :…………………………………………………………………… g. Dominant allele:………………………………………………………………… h. Recessive allele :………………………………………………………………… i. Trait : …………………………………………………………………………… j. Character :………………………………………………………………. ……… · A segment of DNA in a chromosome · A pair of different alleles in an organism · Genetic constituent in an organism · A specific characteristic of an organism · A general characteristic of an organism · Physical appearance of an organism · One of a pair of genes at the locus of the homologous chromosomes · A pair of similar alleles in an organism · Allele that express its characteristic in homozygote or heterozygote state · Allele that can only express its characteristic in homozygote state TABLE 1
  2. 2. INTERVENTION – BIOLOGY CHAPTER 14 2. Diagram shows a schematic inheritance in a plant . T represents the dominant allele for tall plant , t represents the recessive allele for dwarf plant . Complete the schematic diagram of inheritance below Parental phenotype : Tall X Dwarf Parental Genotype : ……….. X tt Gametes : T ……. …… t F1 : Tt …….. Tt ……… Phenotype : ………. Tall …….. Tall 3. The table below shows the genotypes and phenotypes for blood groups in human . Complete the table by filling in the correct genotype or phenotype . Genotype Blood group Phenotype IAIA IAIO A B B IAIB O
  3. 3. INTERVENTION – BIOLOGY CHAPTER 14 4. Fill in the blanks with the correct answer given in table 2 . a. Transmission of parental characters from generation to generation is known as _____________________. b. The basic unit of genetics is called __________________ . c. Chromosomes are found in the ______________________ . d. There are __________________ pairs of autosomes in a human cell . e. A person with blood group AB can donate blood to a person with ___________________ . f. A person with blood group O can receive blood from a person with ___________________ . · Gene · Nucleus · Inheritance · Blood group AB · 22 · Blood group B
  4. 4. INTERVENTION – BIOLOGY CHAPTER 14 Mark Scheme CHAPTER 14 : INHERITANCE 1. State the definition of the following terms by choosing the correct definition from table 1. a. Genotype :………………………………………………………………………. b. Phenotype :……………………………………………………………………… c. Allele :………………………………………………………………………….. d. Gene :…………………………………………………………………………… e. Heterozygote :…………………………………………………………………… f. Homozygote :…………………………………………………………………… g. Dominant allele:………………………………………………………………… h. Recessive allele :………………………………………………………………… i. Trait : …………………………………………………………………………… j. Character :………………………………………………………………. ……… · Genetic constituent in an organism -a · Physical appearance of an organism -b · One of a pair of genes at the locus of the homologous chromosomes -c · A segment of DNA in a chromosome -d · A pair of different alleles in an organism -e · A pair of similar alleles in an organism -f · Allele that express its characteristic in homozygote or heterozygote state -g · Allele that can only express its characteristic in homozygote state -h · A specific characteristic of an organism - i · A general characteristic of an organism - j TABLE 1
  5. 5. INTERVENTION – BIOLOGY CHAPTER 14 2. Diagram shows a schematic inheritance in a plant . T represents the dominant allele for tall plant , t represents the recessive allele for dwarf plant . Complete the schematic diagram of inheritance below Parental phenotype : Tall X Dwarf Parental Genotype : …TT….. X tt Gametes : T …T…. …t… t F1 : Tt …Tt….. Tt …Tt…… Phenotype : …Tall……. Tall …Tall….. Tall 3. The table below shows the genotypes and phenotypes for blood groups in human . Complete the table by filling in the correct genotype or phenotype . Genotype Blood group Phenotype IAIA A IAIO A IBIB B IBIO B IAIB AB IOIO O
  6. 6. INTERVENTION – BIOLOGY CHAPTER 14 4. Fill in the blanks with the correct answer given in table 2 . a. Transmission of parental characters from generation to generation is known as inheritance. b. The basic unit of genetics is called gene . c. Chromosomes are found in the nucleus . d. There are 22 pairs of autosomes in a human cell . e. A person with blood group AB can donate blood to a person with blood group AB. f. A person with blood group O can receive blood from a person with blood group O.
  7. 7. INTERVENTION – BIOLOGY CHAPTER 14 4. Fill in the blanks with the correct answer given in table 2 . a. Transmission of parental characters from generation to generation is known as inheritance. b. The basic unit of genetics is called gene . c. Chromosomes are found in the nucleus . d. There are 22 pairs of autosomes in a human cell . e. A person with blood group AB can donate blood to a person with blood group AB. f. A person with blood group O can receive blood from a person with blood group O.

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