BIO 181 LAB FINAL EXAM TEST QUESTIONS (SPRING SEMESTER) WITH ACCURATE
SOLUTIONS
What is a catalyst?
A substance that increases the rate of a chemical reaction without being used up
What is chromatin?
DNA and proteins complex in chromosomes
What are somatic cells?
Cells that have 2 sets of chromosomes, for example 46 chromosomes in the human body
What are gametes?
Reproductive cells with half the chromosomes, for example 23 chromosomes in the
human body
What are sister chromatids?
Joined copies of original chromosomes
What proteins attach sister chromatids?
Cohesins
,What separates sister chromatids?
Separase
What is a centromere?
Where the chromatids is attached mostly closely to its sister cell.
What is the arm?
The part separate from the centromere
What is mitosis?
Division of genetic material, aka sister chromatid
What is cytokinesis?
Division of the cytoplasm
What is meiosis?
Production of daughter cells with half the DNA
What is contained in the mitotic phase?
Mitosis and cytokinesis
, What is contained in interphase?
G1, Synthesis phase, and G2
Which phase does the duplication of chromosomes occur?
S phase
What is the G1 phase?
Growth and development
What is the G2 phase?
Preparation for cellular division
What is the mitotic spindle?
Structure of fibers made of microtubules, comes out of centrosome
What are kineochores?
Protein structure that have assembled on specific sections of DNA on the sister
chromatids. These pull on the chromosomes
SOLUTIONS
What is a catalyst?
A substance that increases the rate of a chemical reaction without being used up
What is chromatin?
DNA and proteins complex in chromosomes
What are somatic cells?
Cells that have 2 sets of chromosomes, for example 46 chromosomes in the human body
What are gametes?
Reproductive cells with half the chromosomes, for example 23 chromosomes in the
human body
What are sister chromatids?
Joined copies of original chromosomes
What proteins attach sister chromatids?
Cohesins
,What separates sister chromatids?
Separase
What is a centromere?
Where the chromatids is attached mostly closely to its sister cell.
What is the arm?
The part separate from the centromere
What is mitosis?
Division of genetic material, aka sister chromatid
What is cytokinesis?
Division of the cytoplasm
What is meiosis?
Production of daughter cells with half the DNA
What is contained in the mitotic phase?
Mitosis and cytokinesis
, What is contained in interphase?
G1, Synthesis phase, and G2
Which phase does the duplication of chromosomes occur?
S phase
What is the G1 phase?
Growth and development
What is the G2 phase?
Preparation for cellular division
What is the mitotic spindle?
Structure of fibers made of microtubules, comes out of centrosome
What are kineochores?
Protein structure that have assembled on specific sections of DNA on the sister
chromatids. These pull on the chromosomes
