Exam 4: Genetics and Evolution

The Origin of Species was written by Charles Darwin in 1859.

Which of the following statements is most accurate regarding the way human beings develop certain traits or characteristics?

A scientist who studies where the exact location of a gene is located as well as the precise structure of that gene is practicing __________ genetics.

__________ refer to an organism's reproductive cells.In human beings,they are a sperm and ovum.

Which of the following principles of genetics got its foundation in the work of Gregor Mendel?

__________ heredity refers to the idea that units of heredity come in pairs and one pair can dominate another.

Some people with a particular social agenda like to suggest that there are massive genetic differences between people of different racial and ethnic backgrounds.Based on your knowledge of genetics and evolution,what would be your best answer to these individuals?

Despite our best efforts to train lower animals to engage in more sophisticated actions,those animals often maintain or revert back to their instinctual behavior,a phenomenon known as instinctive __________.

__________ are long strands of genetic material found in the nuclei of all cells

The process of meiosis produces _____ new cells,while the process of mitosis produces _____ new cells.

In the movie "Meet the Parents," Robert Deniro's character trained the family cat,Mr.Jinx,to use a toilet.The cat's mother commented,however,that the cat still seems to want to "dig,squat,and bury," every time it needed to relieve itself.This tendency to revert back to original,instinctive behaviors despite training is called __________.

The result of the fusion of a sperm and ovum is an embryo.

Instinctive __________ is the tendency for an organism to revert to instinctive behaviors after being trained to have new behaviors.

If you compare dizygotic twins to normal non-twin siblings,which pair will share more of their genetic code?

Charles Darwin was the original theorist who suggested social Darwinism.

The increase in the size of the human brain,a process called __________,led to an increase in our ability to think,plan,and remember.

Research has suggested that the gender that has greater parental investment gets to choose a mate and the opposite gender has to compete for a mate.

What is the relationship between polygyny and the size difference between males and females in a species?

A pair of duplicated chromosomes is called a(n)__________ and forms an X-like structure.

If a pair of alleles contains two recessive genes,then the pair is __________.