Science of heredity EL#5 (short 1)

Front

The two forms of a gene are called ________________.

Back

alleles

Front

A molecule containing the genetic information that makes up the chromosomes and is shaped like a double helix is called ________________.

Back

DNA

Front

In Mendel's experiments, when two purebred pea plants, one tall and one short, were crossed, what did Mendel find in the second generation?

Back

Some of the plants were short and some of the plants were tall.

Front

What is a segment of DNA that has the code for a specific trait?

Back

Gene

Front

Genes code for specific traits in living organisms. Alleles are different versions of a particular gene, and they are responsible for _________________.

Back

variations in inherited characteristics.

Front

What is the physical expression of a trait called?

Back

Phenotype

Front

What is the genetic makeup of an organism called?

Back

Genotype

Front

What process results in the formation of gametes with half the number of chromosomes?

Back

Meiosis

Front

What is the term for the observable characteristics of an organism?

Back

Traits

Front

What is the term for a specific location on a chromosome where a gene is found?

Back

Locus