Flashcards in 7- Heredity ✅ Deck (83)
The chromosomes that are not linked to sex
The centre connecting point in-between two chromotids
The structure composed of DNA and protein that contains along its length linear arrays of genes carrying genetic information.
The daughter strands of a duplicated chromosome joined together by the centromere
A complex of proteins and DNA in eukaryotic cells
Two sets of matching homologous chromosomes
Sex cells, also known as gametocytes
The basis of heredity; segment of DNA that codes for the formation of a polypeptide
All of the genetic material contained within an organism or a cell; includes both the chromosomes within the neurone and the DNA of the mitochondria
One set of chromosomes
The study of inheritance
Non-identical chromosomes pairing up at meiosis. (X&Y in males)
A type of protein associated with DNA in eukaryotic cells
Pairs of chromosomes that have the same: size snap, and genes at the same location
The display of the number, size, and shape of chromosomes
Chromosomes that affect sexual traits; one has homologous sex chromosomes the other has a dissimilar.
Normal body cells as compared with germ-line cells from which the gametes are derived
A stage in cell division in which the chromosomes move to the poles of the new cells
Division of a cell into two without mitosis; a prokaryotic cell splits to form two daughter cells
Division of the cytoplasm
An enzyme that helps the two strands of the DNA double helix unwind and separate
An enzyme used to catalyse the formation of a bond between two pieces of DNA
An enzyme capable of making an exact copies of fragments of DNA
The stage begins with dismantling of the structures that remain in the cell from from the previous cell division. The cell grows in size and metabolises important enzymes that are required for DNA synthesis.
The cell prepares it self for mitosis during this stage, synthesising the mitotic spindle and preparing for the condensation of the chromosomes.
The stage in between nuclear division where the cell performs its everyday function.
A two phase type of cellular division in which the chromosome number of cell is halved to haploid a number; meiosis is the basis of gamete formation in animals and spore formation in plants
A stage in cell division processes of meiosis and mitosis. During this stage the chromosomes line up at the equatorial plane of the cell.
A process of nuclear division that maintains the parental number of chromosomes for daughter cells; it is the basis of bodily growth and asexual reproduction in many eukaryotic cells.