The Human Genome Project is a scientific effort to

a lethal mutation is one which

Genetic engineering

What type of mutation does not affect the offspring

Fraternal twins

Down syndrome is usually caused by

Splitting frog or cattle embryos is a step in

Inbreeding is to breeds as crossbreeding is to

Which of the following does not belong with the other three

To develop a new breed of dog, a man selects and mates dogs from different breeds that have the characteristics he wants in the new breed. This breeding is an example of

Any change in an organism's genetic material

twins that develop from a single zygote

a mutation that causes the death of the organism

a mutation that changes the sequence of bases in a gene

having two sets of chromosomes

characteristic referring to the number of sets of chromosomes in a cell

has the gene but not the disease

a mutation that occurs in a gamete or gamete-forming cell

a mutation that occurs in a cell that does not produce gametes

a change involving the number of chromosomes in a cell or the arrangement of genes on a chromosome

Cloning is a form of what kind of reproduction

Mutations occurring in cells that do not produce gametes are called

An Old Testament patriarch who practiced selective breeding techniques to increase his wage was

caused by a mutation that affects pigments

a complete set of an organisms genes

the choosing of organisms with desirable traits for breeding

the result of a pregnancy in which two sperm unite with two different eggs and form two genetically unique organisms

a group of organisms that are purebred for a desired characteristic

the mating of an organism with a close relative

a group of genetically identical organisms produced by asexual reproduction

the use of special techniques to control the genetic makeup of an organism

the condition in which an offspring is stronger that its parents

another name for hybridization