Biology Hesi Flashcards
(29 cards)
the scientific method
- observation
- hypothesis
- experiment
- conclusion
what is the key to life
Water
The levels of Organization
- Atoms
- molecules
- macromolecules
- organelles
- Cells
6.Tissues - Organs
- organ system
- the organism
- population
Macromolecules
- Carbohydrate
2.Nucleic Acid - Proteins
- Lipids
Deoxyribonucleic Acid
-A unique organism to a particular organism
-Code for replication
Ribonucleic Acid (RNA)
-Transfers information from DNA to protein as a messenger
DNA Genetic sequences
-Adenine
-Thymine
-Cytosine
-Guanine
DNA Gentic Sequence Binding
Adenine - Thymine
Cytosine - Guanine
Thymine- Adenine
Guanine- Cytosin
in RNA what does Adenine pair with
Uracil
Punnet Squares
…
Genotype
The genetic makeup of and organisms genes
Phenotype
The physical characteristics that are observable
example: Height, eye color, Hair
Alleles
Having one or more versions of DNA
Dominant Alleles
Capitalized Letters
Examples: D, G, B
Recessive Alleles
Lower case letters
c, d, g
Heterozygous
two different alleles
example: Bb, Dd, Gb
Homozygous
Same alleles
example: BB, bb, rr, RR
what percent is each box of a punnet square?
25
Basic Cell structure
…
Nucleus
-activates of the cell
-the site of DNA and RNA synthesis
centrosomes
involved in cell division
Mitochondria
the powerhouse of the cell
Ribosomes
where protein is made ( protein synthesis)
2 types: Free and RER
Rough endoplasmic reticulum
synthesis of protien
Membrane production
Contains ribosomes
