Science at a Distance

Biological Information

Lecture Notes - Part 3 Biological Information - Topic Outline

This Bio-Module requires the use of the text book "Exploring Life" by Professor John Blamire.

Quick Check

Read Chapter 9, Biological Information pages 117 to 120.
Read your lecture notes, and, if necessary, cross check your notes with the "Lecture Notes - a check up".
Read each of the "Quick Questions" below and write down your answer.
When you have finished the test, click on the "ANSWERS" button and see how well you have done.

Test Number BI-3025

Quick Questions

1) Biological information can be inherited from one generation to the next. (True or False)

2) Cell growth and cell division proceeds through a well defined series of steps and stages called the cell cycle. (True or False)

3) The stage of the cell cycle where DNA synthesis takes place is called the G1 stage. (True or False)

4) During cell division, both new daughter cells receive different sets of biological information, so no two cells are ever genetically identical. (True or False)

5) Large multicellular animals are essentially clones of millions and millions of genetically identical cells. (True or False)

6) During sexual reproduction two cells with different genetic content fuse to form a new cell. (True or False)

7) Biological information is stored in the linear sequence of nucleotide bases along a single strand of a DNA molecule. (True or False)

8) Bacterial chromosomes consist of lots of short lengths of DNA joined together by proteins. (True or False)

9) Nucleosomes are the basic units of eukaryotic chromosome structure. (True or False)

10) The synthesis of new DNA molecules begins when a point of origin is placed close to a point of termination. (True or False)

11) Eukaryotic chromosomes have multiple points of origin and multiple termini. (True or False)

12) Proteins are used to separate the two strands of the DNA molecule when replication begins. (True or False)

13) Nucleotide monophosphates are the precursors for the synthesis of the new DNA strands. (True or False)

14) A replicating fork is where the synthesis of new DNA strands takes place. (True or False)

15) RNA synthesis is needed to prime DNA synthesis. (True or False)

16) Once the replication process is complete, one of the daughter DNA molecules has both the old strands and the other daughter DNA molecule has both the two newly made strands. (True or False)

17) Semiconservative DNA synthesis only takes place in germ cells which produce sex gametes. (True or False)

18) Prokaryotic cells divide by binary fission. (True or False)

19) Before dividing, eukaryotic chromosomes condense into tightly packed structures using a series of special proteins called histones. (True or False)

20) Protein microtubules attach to the very ends of chromosomes to pull them apart during cell division. (True or False)

Answers to Part 3
Lecture Notes -
Part 1
Lecture Notes -
Part 2
Lecture Notes -
Part 3
Biological Information - Topic Outline

Science at a Distance
© 1997, 1998, 1999, 2000 Professor John Blamire