Biology (B1)

Question	Answer
Cells in our body have a NUCLEUS which contains DNA	The DNA in the NUCLEUS is arranged into CHROMOSOMES. We have 23 PAIRS
CHROMOSOMES are LONG MOLECULES OF DNA	A GENE is a SHORT LENGTH of a CHROMOSOME
GENES control CHARACTERISTICS, e.g hair and eye colour	There are different versions of GENE, different versions of the same GENE are called ALLELES
Each GENE is a CODE for making a certain protein	Some PROTEINS are STRUCTURAL, these are found in skin, hair, blood and the cytoplasm
COLLAGEN is a PROTEIN found in tendons, bones and cartilage	Some PROTEINS are FUNCTIONAL, ENZYMES are proteins that help with digestion
AMYLASE is a digestive ENZYME that breaks down STARCH to MALTOSE	An ORGANISM GENOTYPE is all the genes it has, the characteristics is the PHENOTYPE

Resource summary

	Created by Tianny White over 10 years ago