5FUN FACTS:
1.Humans are 99.9% genetically identical, only 0.1 of our genetic makeup differs
2.Chromosomal disorders affects about 7 of 1000 live-born infants
3 .Siblings share 50% of genes while identical twins share 100%
4.There are over 200 different types of cells in the human body
5.It would take a person typing 60 words per minute, eight hours a day, around 50 years to type the human genome
1.Humans are 99.9% genetically identical, only 0.1 of our genetic makeup differs
2.Chromosomal disorders affects about 7 of 1000 live-born infants
3 .Siblings share 50% of genes while identical twins share 100%
4.There are over 200 different types of cells in the human body
5.It would take a person typing 60 words per minute, eight hours a day, around 50 years to type the human genome
20 Vocabulary Words:
1. Meiosis- the process by which the number of chromosomes is reduced by half as sex cells form
2. Punnett Square - a chart that shows all the possible ways alleles can combine in a genetic cross
3. Pedigree- a chart or "family tree" that shows the presence or absence of a trait according to the relationships within a family across several generations
4. Probability- a number that describes how likely it is that an event will occur
5. Genotype - an organism's genetic makeup, or alleles
6. Phenotype - an organism's physical appearance, or visible traits
7. homozygous - an organism that has two identical alleles for a trait
8. heterozygous - An organism that has two different alleles for a trait
9. Hybrid - An offspring of crosses that show two different alleles for a trait
10. Alleles - Different forms of a gene
11. Heredity - the passing of a physical characteristics, or traits, from parents to offspring
12. Genetics- The scientific study of heredity
13. DNA replication - the process in which an identical copy of a DNA strand is formed for a new cell
14. Nitrogen bases- Molecules that contain nitrogen and other elements
15. Sex chromosomes - A pair of chromosomes carrying genes that determined whether a person is male or female
16. Genetic Disorder- an abnormal condition that a person inherits through genes or chromosomes
17. Karyotype- a picture of all the chromosomes in a person's cell
18. Clone- an organism that has exactly the same genes as the organism from which it was produced
19. Sex-linked genes - Genes found on the X and Y chromosomes
20. Carrier- a person who has one recessive allele for a trait and one dominant allele