MEMBRANE TRANSPORT AND CELL DIVISION Flashcards
In cells at interphase, the nuclear material assumes a ……… appearance known as
granular or net-like or bead-like, Chromatin
▪ Human cells use ….. endocytosis to take in
cholesterol for use in the synthesis of membrane and other steroid
Receptor-mediated endocytosis
Each chromosome is made up of two strands and each strand
known as
Chromatid
The chromatin condenses into…….
Chromosomes
The chromosome is evident during…… Phases
Late prophase or metaphase
Chromatin consists of ……., …… And ……
DNA, basic histone protein and acidic/neutral non-histone proteins
Chromosomes occur in ……. and each strand is called a ……
Pairs, chromatid
The two strands are called…..
Sister chromatids
The chromatids are held together at a point called
The centromere or primary constriction
Location of the centromere at the centre of the chromosome is called
Metacentric
Location of the genes on the chromosome is called
Locus
Chromosomes sub-medially located such that one arm is slightly longer than the other are called
Sub-metacentric
Location of centromere way-off such that one arm is evidently longer than the other are called
Acroncentric
Location of centromere at an extremity such that only one arm is evident and the other is inexistent is called
Telocentric
Which type of chromosome doesn’t exist in a human
Telocentric
An example of metacentric chromosome is
The human number one chromosome
An example of submetacentric chromosome is
The human X chromosome
The human Y chromosome is an example of …..
Acrocentric
Chromosomes with other constrictions apart from the primary constriction or centromere are called
Satellite chromosome
Satellites are attached to the chromosome at a region called
The nucleolar organising region
The basic histone protein of a chromatin has……
Low molecular weight
In telocentric chromosome…… Does not exist
The p arm
The complete set of chromosomes in the cells of an organism is the. ..
Karyotype
