Exam 1: The Science Of Genetics

Which of the following is not a principle of inheritance discovered by Mendel's garden pea experiments? 1.Each individual organism carries 2 copies of a gene in its normal state 2)Each individual organism randomly passes down one copy of each gene in its gametes (egg or sperm cell) 3)Each gene is inherited independently of the others and is a discrete entity

The collection of DNA molecules that is characteristic of an organism is known as its:

Which of the following best describes the flow of information in a biological system?

Which of the following is a way that the study of genetics influences society?

A professional who is trained to advise individuals about their risks of inheriting or transmitting a genetic disease is known as:

Changes that are introduced into the DNA strand during replication are known as:

Which of the following persons contributed greatly to the understanding of the field of modern genetics?

By analyzing patterns of inheritance,geneticists can localize genes to specific chromosomes and sometimes localize genes to specific positions within chromosomes.This is known as:

Which of the following correctly describes the structure of DNA as determined in 1953? 1.A phosphate backbone with sugars linked together by nitrogenous base bonds. 2)A sugar-phosphate backbone with nitrogenous bases linked together by weak bonds 3)A nitrogenous base backbone with sugars linked together by phosphate bonds.

Nucleic acids are composed of a series of:

Briefly explain how genetic information is expressed.

The study of all the proteins in cells is known as:

Mendel proposed that each individual organism (i.e.pea plants)carried how many alleles,or copies of a gene?

Coding units composed of triplets of adjacent nucleotides are known as:

Established historical relationships between organisms are known as a:

Different forms of the same gene are known as:

If a geneticist pursues their science by analyzing the outcomes of crosses between different strains of an organism,he is practicing:

If the flow of hereditary information follows the pathway RNA®DNA,the process of _____________ ____________ must be involved.

The Human Genome Project's purpose is/was:

If a geneticist is studying how DNA replicates,is expressed and how mutations occur in the DNA strand,perhaps by studying a particular DNA sequence,he is practicing: