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WorksheetsDNA
Total questions: 21
Worksheet time: 9mins
What is the image above (tick all applicable)
Chromosome
Sister chromatids
Centromere
Centrosome
In a molecule of double-stranded DNA, the amount of adenine present is always equal to the amount of - (tick all applicable)
cytosine
guanine
thymine
uracil
Which 2 molecules form the sides of the DNA molecule?
deoxyribose sugar and adenine
deoxyribose sugar and a hydrogen bond
deoxyribose sugar and the nucleus
deoxyribose sugar and phosphate
Which of the below is the correct order of replication?
3, 2, 1, 4
2, 1, 4, 3
2, 3, 1, 4
3, 4, 1, 2
Before the cell divides, what process needs to happen?
Transcription
Translation
Replication
Protein synthesis
Tick the correct complementary pairs
Adenine - Thymine
Adenine - Guanine
Cytosine - Guanine
Cytosine - Thymine
Which of the following organelle also replicates before mitosis?
nucleus
ribosome
centrosome
centromere
DNA replication occurs before mitosis
True
False
A gene is a section of the DNA molecule found within the chromosome
True
False
Base pairing occurs by the formation of hydrogen bonds between two complementary nitrogen bases.
True
False
As the nucleotides pair up, two strands of DNA is formed also known as parallel DNA strands
True
False
Cell division by mitosis occurs during growth, repair, asexual reproduction and cloning
True
False
In humans the diploid number of chromosomes (2n) is 46. What would the haploid (n) number of chromosomes be?
23 pairs
23
92
46 pairs
Which of the following describes homologous pairs of chromosomes?
They are of the same length
They contain the same genes at the same position
Each member of the pair is inherited from each parent
