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pedigree

A(An) ____________________ is a diagram that follows the inheritance of a single gene through several generations of a family.

IB

The alleles IA and ____________________ for the ABO blood group are codominant.

O

A person who has blood type O can receive a blood transfusion only from a person who has blood type ____________________.

Two

People who have sickle cell disease inherited ____________________ copies of the sickle cell allele.

Mother

A boy who has hemophilia inherited the disorder from his ____________________.

Turner's Syndrome

A female with the disorder _________________________ inherits only one X chromosome and has the genotype XO.

DNA Sequence

A person can be tested for the allele that causes Huntington's disease because the _________________________ of that allele is different from that of the normal alleles

Mountains

James Hutton thought that rocks from the sea floor could be pushed up very high to form ____________________.

Lyell

The geologist ____________________ proposed that past changes in Earth must be explained in terms of events and processes observable today.

Acquired Traits

According to Lamarck's theory of the inheritance of _________________________, the long legs of certain shore birds could be acquired by frequent wading in water rather than through inheritance.

Evolution

Although his idea was incorrect, Jean-Baptiste Lamarck was one of the first people to propose a scientific explanation for ____________________.

Increases

When a population's birthrate exceeds its death rate, the size of the population ____________________.

living things

Charles Darwin applied Thomas Malthus's thoughts about human population growth to all ____________________.

homologous

Certain animal structures that have different functions in different species and develop from the same clump of embryonic cells are called ____________________ structures.

species

According to Darwin's theory of evolution, ____________________ change over time.

environment

Darwin proposed that natural selection took place as individuals best suited to the ____________________ survived and reproduced.

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