Describe that the sequence of bases in a gene determines the sequence of amino acids needed to make a specific protein (knowledge of the details of nucleotide structure is not required)
Questions and Answers
Explain that DNA controls cell function by controlling the production of proteins, including enzymes
Explain that DNA controls cell function by controlling the production of proteins, including enzymes
Define a gene as a length of DNA that codes for a protein
Define a gene as a length of DNA that codes for a protein
Investigate and describe examples of continuous and discontinuous variation
Investigate and describe examples of continuous and discontinuous variation
Describe that discontinuous variation is usually caused by genes only and continuous variation is caused by genes and the environment
Describe that discontinuous variation results in a limited number of phenotypes with no intermediates, including ABO blood groups, seed shape and seed colour in peas
Describe that discontinuous variation results in a limited number of phenotypes with no intermediates, including ABO blood groups, seed shape and seed colour in peas
Describe variation as differences between individuals of the same species
Describe variation as differences between individuals of the same species
State that some viruses can pass across the placenta and affect the fetus
State that some viruses can pass across the placenta and affect the fetus
Identify, on diagrams, the placenta and umbilical cord and describe their functions in relation to the exchange of dissolved nutrients, gases and excretory products between the blood of the mother and the blood of the fetus (structural details are not required)
Identify, on diagrams, the placenta and umbilical cord and describe their functions in relation to the exchange of dissolved nutrients, gases and excretory products between the blood of the mother and the blood of the fetus (structural details are not required)
State the functions of the amniotic sac and the amniotic fluid
State the functions of the amniotic sac and the amniotic fluid