This document is a biology chapter on inheritance. It contains questions to test understanding of key genetics concepts like genotype, phenotype, alleles, dominant and recessive traits. Questions define these terms and have students complete inheritance diagrams and blood type tables. Blank spaces ask students to identify inheritance, the basic genetic unit, where chromosomes are found, number of human autosomes, and blood type donation/reception rules.

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. 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. 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. 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. 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. 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. 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.