What is the observable characteristics in an individual resulting from the expression of genes?
phenotype
What is an example of genetic material?
DNA, genes, or chromosomes
What is a section of DNA called?
Gene
What are the different forms of a gene called?
Alleles
The combination of the two alleles makes up the
genotype
Which trait will always express itself regardless of what other trait it is paired with?
Dominant
What are the molecules that join together to make the rungs of the DNA ladder?
Base pairs or nucleotides
Where is genetic material located in a plant or animal cell?
Nucleus
How many chromosomes do humans have?
46 or 23 pairs
What is a characteristic or feature determined by genes?
Inherited Trait
What is the structure made of tightly coiled DNA?
Chromosome
How many chromosomes do human sperm and egg cells (gametes) have?
23
True or False: In his genetics experiments with pea plants, Gregor Mendel determined traits were passed down in a random pattern.
False: It is in a predictable pattern
True or False: Chromosomes contain genes
True
What is the passing down of traits from one generation to next generation?
Heredity