Cell Cycle and Mitosis Flashcards
(46 cards)
An organism’s DNA, containing arrays of genes, is organized into structures called _____.
Chromosomes
Function of Chromosomes:
Serve as vehicles for transmitting genetic information
Serve as vehicles for transmitting genetic
information
Chromosomes
Two major processes involved in the genetic
continuity of nucleated cells:
Mitosis
Meiosis
Production of two cells with the same number
of chromosomes as the parent cell.
Mitosis
Reduces the genetic content and the number of
chromosomes by half.
Meiosis
It is the unfolding and uncoiling into diffuse network within the nucleus when the cell is not undergoing division.
Chromatin
The chromosomes contains a constricted region called the _____.
Centromere
Short arm of Centromere is called _____.
P Arm
Long arm of the Centromere is called ______.
Q Arm
If the centromere is in the middle, what is its designation?
Metacentric
If the centromere is in between the middle, and end, what is its designation?
Submetacentric
If the centromere is close to end, what is its designation?
Acrocentric
If the centromere is at the end, what is its designation?
Telocentric
All somatic cells derived from members of the same species contain an identical number of chromosomes and this is referred to as _____.
Diploid Number (2n)
With the exception of sex chromosomes, chromosomes exist in pairs called _____.
Homologous Chromosomes
Replicas of one another and would separate into two new cells during cell division.
Sister Chromatids
The _____ is equal to onehalf of the diploid number.
Haploid Number (n)
Specific location of a gene within a genome.
Locus (plural for Loci)
In a population of members of same species, many different forms of the same gene, called _____.
Alleles
Humans have how many Chromosomes?
46 Chromosomes
Humans have how many pair of Chromosomes?
23 pairs
Chromosomes of a female human:
Two homologous X Chromosomes
Chromosomes of a male human:
1 X Chromosome
1 Y Chromosome