CHROMOSOMES & CELL CYCLE Flashcards
(21 cards)
Is known as the “ basic unit of life “ or “ fundamental component of an organism “
CELL
It refers to the process of transmission of genes from parent to offspring.
Is the passing of genetic traits from parents to their offspring, and these offspring get all the genetic info from the parents.
INHERITANCE
The sole responsible for the uniqueness inherited by a living organism is the _____
CHROMOSOME
DNA stands for?
Deoxyribunocleic Acid
is the genetic material located inside a chromosome in the nucleus of the cell.
DNA ( Deoxyribonucleic Acid )
All living things contain a self-replicating genetic material that directs the activities and functions of the cells?
CHROMOSOME
Is a helical structure consisting of two strands
DNA ( Deoxyribonucleic Acid )
Two identical halves of a replicated chromosome after the S phase of the cell cycle.
CHROMATIDS
The attachment points of the two chromatids of a chromosome.
also described as the constriction point which divides the chromosome into two sections, or ” arms “
CENTROMERE
also known as p arm
SHORT ARM
upper arms of the chromosome which is usually shorter.
SHORT ARM
lower arms of the chromosome which is usually longer.
Q ARM
Is a series of events that takes place in a cell as it grows and divides.
CELL CYCLE
The cell cycle is divided into two stages :
INTERPHASE & CELL DIVISION ( MITOTIC PHASE )
Is the interval between two cell divisions.
INTERPHASE
During this stage, the cell is not dividing ; it merely grows.
INTERPHASE
During this stage, the cell is not dividing ; it obtains nutrients and metabolizes, grows. replicates its DNA in preparation for Mitosis.
INTERPHASE
What are the three sub stages of Interphase>
- G1 PHASE
- S PHASE
- G2 PHASE
in this phase :
- the cell grows initially
- RNA occurs
- Increase number of Mitochondria
G1 PHASE
In this phase :
- DNA are synthesized in preparation for the next cell division
S PHASE
in this phase :
The cell grows rapidly and prepares for the actual cell division.
G2 PHASE