Transgenic plants and animals. Hybridoma
Answers are for parents and teachers.
1
Write one main difference between ordinary breeding and genetic engineering.
In breeding many genes pass together; in genetic engineering one needed gene is inserted precisely.
2
Write two benefits and two risks of transgenic plants.
Benefits: higher yield, less pesticide. Risks: possible allergy, gene flow to wild species (these are tested).
3
Write the steps of creating Dolly.
The egg nucleus is removed; the nucleus of another sheep’s somatic cell is inserted; the embryo develops; it is transferred into a third sheep’s uterus.
4
Hybridoma cells double 6 times. How many cells does one give? (Number only.)
64
5
Name two medical uses of monoclonal antibodies.
Test systems that detect pathogens and hormones; treatment of some tumours and autoimmune diseases.