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WorksheetsDNA and Inheritance
Total questions: 18
Worksheet time: 9mins
The two main causes of variation within a species are:
Genetics
Diet
Environment
Personality
Some characteristics are caused by both genetics and environmental influences, select all those that only genetic.
Weight
Scar
Sporting ability
Eye colour
Blood group
Which type of graph would be used to show continuous data?
Bar Chart
Pie Chart
Histogram
Line Graph
Name the main 2 scientists who discovered the structure of DNA
Watson and Crick
Franklin and Crick
Watson and Mendel
Creese and Bareham
Select all the statements about the structure of DNA that are TRUE.
The structure is described as a double helix
A pairs with C
C pairs with G
The bases are held together with hydrogen bonds
The bases are: Argon, Thymine, Cyan, Ghana
Based on the complementary base pairing rules what would be the correct base pairing of the following strand: AGC TGA
TGT ACA
AAT CGT
TCG ACT
ACT CAT
Where is DNA found?
Nucleus
Cell Wall
Cell Membrane
Anywhere in the cell.
How many chromosomes are in a diploid cell?
50
46
20
16
(a) is a short length of DNA found on a chromosome that codes for a particular characteristic.
An alternative form of a gene is called an (a) .
The genetic make up of an organism is known as their (a)
The physical characteristics of an organism are known as their (a)
Which of these would be correct for an organism that was described as being homozygous recessive.
bb
BB
Bb
Bbb
If brown eyes are dominant (E) and green eyes recessive (e), what colour eyes would a cat have if they had the genotype, Ee?
Brown
Green
Blue
What process takes place to ensure only half the number of chromosomes (23) are found in gametes?
Mitosis
Meiosis
Fertilisation
Phagocytosis
True or False: Males are XY
True
False
Cells (Eg: gametes) with only half the number of chromosomes are known as (a)
The reason Meiosis takes place is to.......
Maintain the chromosome number within cells.
Make the maths easier for those people studying DNA
Allow males and females to reproduce
For fun!
