Inheritance, Variance and Evolution Flashcards
What is the female gamete?
egg
what is the male gamete?
sperm
in plants what is the female gamete?
pollen
in plants what is the male gamete?
Guvm
What happens to the embryo to create identical twins?
it splits.
how many pairs of chromosomes do humans have?
23
in which cell division process are the ‘daughter cells’ genetically identical?
mitosis
chromosomes duplicate by lining up in the middle of the cell. true or false
true
in mitosis the arm of the chromosome gets pulled to where?
the opposite side of the cell.
what structures of the cell have to divide to form 2 cells?
cytoplasm and cell membrane
in meiosis how many daughter cells are made?
4
in meiosis are the cells genetically the same?
no
how many sets of cell division does meiosis have?
2
What is an allele?
different versions of the same gene
give an example of an allele.
hair colour, eye colour
what is a gene?
a length of DNA
what do genes contain?
a code
what does the code in genes regulate?
proteins
what is a polymer?
a large molecule made of many small replicating units joined together
the monomer contains 3 structures. what are they?
circle- phosphate
house- sugar
square- base
what is the name of the structure of DNA
double helix
What are the 4 letters used in DNA codes
C, G, T, A
What project made scientists be able to track human migration patterns from the past?
Human Genome Project
The human genome project helped scientists be able to do what
search for genes linked to disease and understand the treatments for inherited disease
