FG&B Stage 2 Summary

Is a unit of highgly packed and organized DNA; sometimes it has an "X" shape.

• Gene

• Chromatin

• Chromosome

• RNA

Segment of DNA that contains information about a certain characteristic.

• Gene

• Chromatin

• Chromosome

• RNA

LOCation of a gene.

• Chromosome

• Ubication

• Locus

• Chromosome

It is the name given to the alternative versions of a gene (for example, for our eyes we have blue, brown, green, etc.)

• Locus

• Chromosome

• Dominant

• Allele

We have one pair of each type of chromosomes. One from our father and another one from our mother. These chromosomes are called:

• Homozygous

• Homologous

• Heterologous

An individual that has two EQUAL copies of a gene (AA, aa) is called ________, and one individual that has to DIFFERENT copies of a gene (Aa) is called ________.

• Homozygous / heterozygous

• Heterozygous / homozygous

• Homologous / homozygous

If we reproduce two parents (P generation) of pure lines, the resultant organisms are called:

• Hybrids

• Mixed

• Non-pure

It is the physical manifestation of the genes, or what we see:

• Genotype

• Phenotype

It is the content of the genes of an organism, and is represented with letters (AA, Aa, aa).

• Genotype

• Phenotype

An allele that is always expressed. We use capital letters to represent them.

• Dominant

• Recessive