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genetics

genetics study guide

QuestionAnswer
What is unique about an identical twin's DNA? identical twins nearly have the same DNA.
what is carrier? a person or other organisms that has inherited a recessive allele for a genetic trait.
what is the difference between mitosis and meiosis? mitosis occurs both in sexually and asexually reproduction. meiosis occurs only in sexually reproduction.
what is sickle-cell anemia? a disease in which your body produces abnormally shaped red blood cells.
what is genetic engineering? genes from one organism transferred into DNA or another organism.l
what is a gene? the basic physical and function unit of heredity.
Describe the types of mutations that can occur. substitution deletion addition insertion
how does down syndrome occur? down syndrome is caused by a person having three copies of chromosomes.
what are the male and female sex chromosomes? (xx) female (xy) male
what rules must be followed when ATCG bases are paired? the base pairing rules for DNA are governed by the complementary in a g-c and a-t pairing.
describe DNA DNA is made up of nucleotide' s. it's shaped like a spiral ladder.
what is inbreeding? crossing 2 individuals that have identical alleles.
what is selective breeding? selective a few organisms w/ desired traits.
what was the purpose of the human genome project? to identify the DNA sequence of every gene in the genome.
what is genome? all the DNA in one cell of an organism
what is mutation? any change in the gene or chromosome
what is karotype? the number and appearance of chromosomes in the nuclues
traits are influenced by the genes and environmental factors. explain the difference. human behavior answer the question by calculating herebility factors percentage estimates contribution, that genes make some observed differences
what is cloning? an organism that is genetically identical to the organism from where it was born.
Created by: mikayla04
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