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WorksheetsVARIATION
Total questions: 20
Worksheet time: 10mins
Which type of data would student height be categorized as?
Categorical
Continuous
Discontinuous
Normal
Student eye colour could be considered what type of data
Discontinuous
Independent
Continuous
Colours
Which of the following are genetically inherited human characteristics that are not affected by any changes in the environmental conditions?
I Skin colour
II Blood group
III Presence of a dimple
IV Height
I and II
I and III
II and III
III and IV
Which of the following statements is true?
continuous variation produces many different characteristics within a population.
discontinuous variation is due to genetically inherited characteristics
the colour of the skin is an example of discontinuous variation.
discontinuous variation is influenced by adaptation to the environment
The following information is about two individuals, X and Y.
*Individual X: presence of a dimple
*Individual Y: no dimple
Which of the following factors causes the difference in the trait between the two individuls?
mutation
genetics
hormone
environment
Variation in a trait may be due to the change in a genetic material.What do you call this type of change?
radiation
mutation
inversion
deletion
Which of the following sources can cause genetic variation in sexual reproduction?
I Random fertilisation
II Cell mutation
III Crossing over during prophase II
IV Independence assortment during metaphase I
I AND II
I AND IV
II AND IV
III AND IV
Diagram below shows an illustration of the gene sequence on a chromosome before and after exposure to radioactive radiation.
This is an example of .....
deletion
inversion
duplication
substitution
Which of the following would increase the number of different alleles in a population?
crossing over
gene mutation
random fusion of gametes
independent assortment of chromosomes
Diagram below shows a karyotype of an individual suffering from a genetic disease.
What is the genetic disease suffered by the individual?
albinism
sickle cell anaemia
down's syndrome
turner's syndrome
Which of the following shows mutation due to translocation of the chromosome?
Which of the following cause chromosomal abnormalities?
I Deletion
II Inversion
III Substitution
IV Insertion
I AND II
I AND III
II AND IV
III AND IV
