LSU Bio 1001 exam #3 Study Guide
Questions with Correct Answers.
Each daughter cell receives a complete set of DNA information. t/f - Answer True
Prokaryotic chromosomes are not contained in a membrane-bound nucleus. t/f - Answer
True
at the end of DNA replication, a duplicated chromosome consists of 4 identical DNA double
helices. t/f - Answer False; 2 not 4
Homologous chromosomes are usually not identical. t/f - Answer True
Gametes have exactly half the genetic information of their parent cells and reestablish the full
genetic complement when they fuse. t/f - Answer True
Many plants and fungi reproduce both asexually and sexually. t/f - Answer True
The prokaryotic cell cycle consists of relatively short period of growth followed by mitosis. t/f -
Answer False; Long periods of growth
Each chromosome has 1 telomere and 2 centromeres. t/f - Answer False; 2 telomere 1
centromere
When looking at a karyotype, we see that most cells contain individual chromosomes. t/f -
Answer False; pairs of chromosomes
Each chromosome in a pair carries the same genes arranged in the same order. t/f - Answer
True
Loose -> tight - Answer Double helix
Histones
Nucleosome
Chromatin
Chromosomes
3 categories of cells - Answer Stem cells
, Permanently differentiated cells
other cells capable of dividing
1. The single prokaryotic chromosome is usually attached to the plasma membrane of the cell
2. chromosomes replicates, produces 2 identical copies, that attach to plasma membrane at
nearby, but separate sites
3. As the cell increases in size, new plasma membrane is added, pushing chromosomes apart
4. The plasma membrane grows inward between the two chromosome copies
5. The parent cell divides into two daughter cells, with each one genetically identical to the
parent cell and containing a single, circular chromosome - Answer 5 distinct stages in the
prokaryotic cell cycle
What are the two types of chromosomes - Answer Haploid and diploid
Eukaryotic chromosomes usually occur in pairs with similar genetic information. Do these pairs
have the same genes? If yes, are they in the same order? - Answer They carry the same
genes, in the same order
What are the three phases of interphase - Answer G1, S, G2
A time for acquisition of nutrients and growth to proper size (interphase) - Answer G1
Characterized by DNA synthesis, when every chromosome is replicated (interphase) - Answer
S
Completion of cell growth and preparation for division of the cell into daughter cells
(interphase) - Answer G2
"Xerox machine" - Answer Mitosis
"Reduction division" - Answer Meiosis
Acronym for the steps of mitotic cell division - Answer PMATC
following ___________, the cell enters G1 of interphase; forms 2 daughter cells, each with a
nucleus identical with the other - Answer Cytokinesis in animals
Questions with Correct Answers.
Each daughter cell receives a complete set of DNA information. t/f - Answer True
Prokaryotic chromosomes are not contained in a membrane-bound nucleus. t/f - Answer
True
at the end of DNA replication, a duplicated chromosome consists of 4 identical DNA double
helices. t/f - Answer False; 2 not 4
Homologous chromosomes are usually not identical. t/f - Answer True
Gametes have exactly half the genetic information of their parent cells and reestablish the full
genetic complement when they fuse. t/f - Answer True
Many plants and fungi reproduce both asexually and sexually. t/f - Answer True
The prokaryotic cell cycle consists of relatively short period of growth followed by mitosis. t/f -
Answer False; Long periods of growth
Each chromosome has 1 telomere and 2 centromeres. t/f - Answer False; 2 telomere 1
centromere
When looking at a karyotype, we see that most cells contain individual chromosomes. t/f -
Answer False; pairs of chromosomes
Each chromosome in a pair carries the same genes arranged in the same order. t/f - Answer
True
Loose -> tight - Answer Double helix
Histones
Nucleosome
Chromatin
Chromosomes
3 categories of cells - Answer Stem cells
, Permanently differentiated cells
other cells capable of dividing
1. The single prokaryotic chromosome is usually attached to the plasma membrane of the cell
2. chromosomes replicates, produces 2 identical copies, that attach to plasma membrane at
nearby, but separate sites
3. As the cell increases in size, new plasma membrane is added, pushing chromosomes apart
4. The plasma membrane grows inward between the two chromosome copies
5. The parent cell divides into two daughter cells, with each one genetically identical to the
parent cell and containing a single, circular chromosome - Answer 5 distinct stages in the
prokaryotic cell cycle
What are the two types of chromosomes - Answer Haploid and diploid
Eukaryotic chromosomes usually occur in pairs with similar genetic information. Do these pairs
have the same genes? If yes, are they in the same order? - Answer They carry the same
genes, in the same order
What are the three phases of interphase - Answer G1, S, G2
A time for acquisition of nutrients and growth to proper size (interphase) - Answer G1
Characterized by DNA synthesis, when every chromosome is replicated (interphase) - Answer
S
Completion of cell growth and preparation for division of the cell into daughter cells
(interphase) - Answer G2
"Xerox machine" - Answer Mitosis
"Reduction division" - Answer Meiosis
Acronym for the steps of mitotic cell division - Answer PMATC
following ___________, the cell enters G1 of interphase; forms 2 daughter cells, each with a
nucleus identical with the other - Answer Cytokinesis in animals
