Ch. 6 science quiz

From each parent, offspring inherit

• half their phenotypes

• half their genes

• half their cells.

plant and animal cells typically have

• three copies of each gene

• two copies of each gene

• varying copies of each gene

the genetic material of plants and animals is

• mitochondria

• cytoplasm

• DNA

The chromosomes of each cell in an organism are where

• DNA is located

• photosynthesis takes place

• proteins are produced

Human traits such as a widow's peak is controlled by a single gene with.......

• two alleles

• multiple alleles

Even though a gene may have multiple alleles, a person can carry only _________

• one of those alleles

• two of those alleles

Some human traits show a large number---------- because the traits are controlled by many genes

• phenotypes

• genotypes

unlike most chromosome pairs, the X and Y chromosomes have ----------

• different genes

• the same genes

An interaction between genes and ---------determines many of a person's characteristics

• favorite color

• environment

two-----------techniques are hybridization and inbreeding.

• cloning

• identifying the DNA sequence

• selective breeding