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Page 20 Quiz
Question | Answer |
---|---|
The passing of traits from parents to offspring | Heredity |
Different forms of the same gene are know as | Allele |
How many chromosomes are present in a human sex cell | 23 |
Found inside the nucleus that controls all cell activity | DNA |
Set of Instructions for charcteristics | Gene |
Actual inherited combination of alleles | Genotype |
Organism's apperance | Phenotype |
If two plants are crossed Tt x Tt, what is the chance of recessive trait | 25% |
When cell's are not dividing, What stage of cell cycle is it in? | Interphase |
Two functions of chromosomes | Organize and Division |
DNA Molecule and RNA Molecule | DNA= A and T & C and G RNA= A and U & C and G |
Sides of ladder and rungs are made of | Sugar & Phosphate and Base |
Complimentary Strand to TAGGCTA | ATCCGAT |
How is RNA different to DNA | The shape of ladder |
Purpose of Meiosis and Mitosis | Make gametes and Make human cells |
Gametes undergo | Meiosis |
Gregor Mendel contributed | Heredity |
Why is mitosis important? 4 steps of mitosis | To replace dead body cells Prophase, Meteophase, Anaphase, Telophase |
What does TT, Tt, tt, mean? | TT= Dominate Homozygous Tt= Heterozygous tt= recessive Homozygous |
Punnett Squares show | Possibilities |
Why do cells need to produce new cells | To gain the lost cells |
Genes are located in | chromosomes |
40 chromosomes in a body cells, How many chromosomes in egg | 20 |