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Genes 123

QuestionAnswer
describe what a chromosome is made from long molecules called DNA. There are 23 pairs of them in a human calls nucleus.
Explain what a nucleus does? controls what happens in the cell
State what a genotype is our genetic makeup for example "bb" or "Bb"
Describe what a dominant allele does always shows, even if the individual only has one copy of the allele. You only need one copy of the allele for brown to have brown eyes and two copies will still give you brown eyes.
explain what a heterozygous is these individuals carry alleies
describe what DNA molecules are these nolecules carry the genetic code that determines thr characteristics of a living thing
state what a recessive allele is only shows if the individual has two copies of this allele, you need two copies of the allele for blue eyes to have blue eyes.
explain what a homozygous is these individuals carry two copies of the same allele
describe what a phenotype is the characteristics which show up in our appearance for example "brown eyes" r "blue eyes"
state what a allele is different forms of the same gene:either "brown eyes" or "blue eyes"
explain what a gene is a short section of DNA, each __ codes for a specific person.
state the order of: cell, tissue, DNA, genes, nucleus, body, chromosomes Body Tissue Cell Nucleus Chromosomes DNA Genes
state how many chromosomes there are in the human body there are 23 pairs in the human body and 46 in total (you get half from your mum and half from your dad)
state 3 types of adaptation a polar bear has 1. thick skin to keep them warm 2. webbed feet to help them swim 3. smell from miles away to get prey
Created by: Scribsz
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