Genetics

When the two alleles from the parents are DIFFERENT, we say that the organism is:

• homozygous

• heterozygous

• dominant

• recessive

True or False - The genotype is the exact alleles for a certain trait. They represent the genes of the organisms using letters.

• True

• False

______________ is the process in which characteristics can pass from parents to offspring.

• Genetics

• Phenotype

• Chromosomes

• Heredity

Genes can be recessive. This means they are "stronger" and cover up the other genes.

• True

• False

Who did many experiments on pea plants and discovered that traits can skip generations? He chose pea plants because they were cheap and reproduced quickly.

• Gregor Recessive

• Charles Darwin

• Albert Einstein

• Gregor Mendel

Which of the following is an ADVANTAGE of sexual reproduction?

• to not have to find a mate

• more likely to lose majority of population if a disease comes

• more diverse offspring

• more uniform offspring

What are the alternate forms of a gene called?

• alleles

• traits

• phenotypes

• genetics

The long, threadlike structures in the nucleus where DNA is located are known as:

• chromosomes

• inherited traits

• recessive alleles

• dominant alleles

The "weaker" gene that is not expressed if the dominant allele is there is said to be:

• genotype

• quiet

• dominant

• recessive

Characteristics that are passed from one generation to the next are called traits.

• True

• false