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Genes & Chromosomes

TermDefinition
Genes Sections of DNA that code for the production of protiens
What do these proteins determine in the human body? These proteins determine all kinds of traits in the human body (hair color, eye color, etc)
T or F, Chromosomes are stands of DNA that are very tightly wound True, Chromosomes are made up of many genes, The human body has 46 chromosomes ( 23 Gamete & 23 Sperm)
Are there 46 chromosomes in the human body in total or in each cell? There are 46 chromosomes in each cell
Heredity
Chromosomes made up of long strands of a material called chromatin
Chromatin A combination and Proteins and DNA
What are the diffrent uses of protein? -Building and repairing body -Source of energy -Making enzymes -Make Hormones -Transporting substances
Enzymes Substances in our body wich help chemical reactions take place
Meiosis In meiosis, cell replication happens twice, which leaves us with 4 cells
Allele A form of a gene often represented by a letter
Recsesive Allele usually represented by a lowercase letter and recessive meaning the allele will not usually show up
when will a recessive allele show up? only if there is no dominant allele present
Dominant allele Usually represented by a uppercase letter and is an allele that will show up
When will a dominant allele show up? If there is atleast ONE dominant allele, it will always show up (Hh/ HH)
Genotype what your genes say
Homozygous The 2 Alleles shown are the same (HH & hh)
Homozygos Dominant There are two dominant alleles (HH)
Homozygos Recessive There are two recessive alleles (hh)
Heterozygos The two alleles are different (Hh)
Phenotype Phisical traits of the organism
How many alleles do you get from each parent? 1 Allele from father and 1 Allele from mother
Created by: Lily Ibrahim
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