the process in which populations gradually change over time.
what is evolution
100
Cell division that results in 4 daughter cells that each are haploid (1n) having half the number of chromosomes as the parent cell
What is meiosis
100
A threadlike, gene-carrying structure found in the nucleus. Each consisting of one very long DNA molecule and associated proteins.
What is a chromosome
100
A rare change in the DNA of a gene, ultimately creating genetic diversity.
What is mutation
100
when all of the members of a species have died.
What is extinction
200
an inherited trait that helps an organism survive and reproduce in its environment.
What is adaptation
200
A cell containing two full sets of chromosomes (2n - one from father and one from mother). In humans, the diploid number is 46.
What is a diploid
200
Deoxyribonucleic acid is a molecule that contains the information that determines inherited characteristics (genetic material)
What is DNA
200
A scientist best known for his contributions to the science of evolution. Sailed on the HMS Beagle and explored the Galapagos Islands discovering different species of finches on each island.
who is charles darwin
200
A pair of chromosomes of the same size, shape and have the same gene; one from each parent.
What is homologous pairs
300
Male reproductive cell in animals. It is haploid and has a tail.
What is sperm
300
A cell containing a single set of chromosomes (one of each kind - half)
What is a haploid
300
A rare change in the DNA of a gene, ultimately creating genetic diversity.
What is mutation
300
Offspring have different traits that improve the chance that some will survive environmental changes.
What is genetic variation
300
How many pairs of chromosomes present in humans diploid (2n) cells
What is 46 pairs of chromosomes
400
Female reproductive cell in animals.
What is an egg
400
A haploid male or female reproductive cell (e.g. sperm and egg)
What is gametes
400
In eukaryotic cells, it is the part of the cell cycle during which the nucleus divides.
What is mitosis
400
The cell grows and carries out normal life functions; organelles duplicate; DNA replicates; the cell grows twice its size and prepares for mitosis
What is interphase
400
Chromosomes line up
in the middle of the cell.
What is Metaphase (pMat)
500
Ability to generate offspring.
What is reproduction
500
Symbol for diploid number of chromosomes in a cell.
What is 2n
500
The division of the parent's cytoplasm pinching into two new identical daughter cells in animal cells. In plant cells a CELL PLATE forms separating the two new cells.
What is Cytokinesis
500
Complex material made up of DNA and proteins.
What is a chromatin
500
Life cycle of an eukaryotic cell divided into three stages: Interphase, Mitosis and Cytokinesis