CURLY HAIR
What is a trait?
A trait is a distinguishing characteristic of an organism.
EXAMPLES:
•Hair color
•Eye shape
•Height
What does DNA stands for?
Deoxyribonucleic Acid
The researchers James Watson and Francis Crick and fellow researcher Maurice Wilkins did not receive a Nobel Prize in 1962 for their work.
TRUE OR FALSE
FALSE
•Chromosomes are visible in the cell’s nucleus even under the microscope when the cell is not dividing.
TRUE OR FALSE
FALSE
The set of genes that an organism possesses.
The set of genes that have been expressed in an organism.
PHENOTYPE
What is the basic unit of heredity?
Genes
What is the blueprint of life?
DNA
What is the graphical way of determining all the possible outcomes of a genetic cross.
Punnett square
What are the basic unit of heredity?
Genes
The molecule known as DNA was first identified in the 1860s by a Swiss chemist ____________.
Johann Friedrich Miescher.
•Genes that determine a single trait have two or more variations called _________.
Alleles
Four chemical bases.
Adenine, Guanine, Cytosine, and Thymine.