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Genetics

Junior Cert Science

QuestionAnswer
What do you call the study of the inheritance of characetesitics Genetics
Name some inherited physical characteristics Eye colour, hair colour, free ear lobes
What is the name given to thread like structures found in the nucleus of as cell Chromosomes
What are chromosomes made from Protein and DNA
How many chromosomes are present in each sex cell, egg and sperm 23
What do you call the chemicals present on chromosomes that carry the genetic information Genes
How many chromosomes present in all cells except sex cells 46
What is the name given to a gene that appears in a child when two different genes are controlling a characteristic Dominant gene
What is the name given to the gene that does NOT appear in a child when two different genes are controlling a characteristic Recessive gene
Capital letters are used to represent what type of gene Dominant
Small letters are used to represent what type of gene Recessive
Name some non inherited characteristics Riding a bike, drive car, speak Irish
Created by: Teacher Amrein