This unit covers the differences between sexual and asexual reproduction, the structure of DNA and its role in making proteins, mutations and their effects and how characteristics are inherited.
What is the function of a ribosome?
To release energy from glucose
Involved in protein synthesis
To build sugars by photosynthesis
Which statement is true of genes?
A gene is a short section of DNA that codes for a protein
A single molecule of DNA
Humans have 46 genes
How many chromosomes does a human have in each body cell?
Which statement is correct about the cells produced by meiosis
Two daughter cells are produced. Each has the same number of chromosomes as the parent cells
Four daughter cells are produced. Each has the same number of chromosomes as the parent cells
Four daughter cells are produced. Each has half the number of chromosomes as the parent cells
How many base pairs are in the human genome?
Which statement is true about the process of meiosis?
Four non-identical cells are produced
Two identical cells are produced
Four identical cells are produced
Which letter pairs with a C in DNA?
Which letter pairs with an A in DNA?
What is a genome?
A complete copy of an organism's DNA
A small section of the DNA in a chromosome that codes for a protein
An x-shaped section of DNA
How many chromosomes are present in human gametes?