Genetics Flashcards
The study of the way animals and plants pass on to their offspring
Genetics
Characteristics that a child receives from both parents
Heredity
What are cells?
Basic unit of all living matters
What is a cytoplasm?
Substance of a cell outside a nucleus.
This central point of cell contains genetic coding for maintaining life systems and issuing commands for growth and reproduction
Nucleus
There are how many pairs of chromosomes?
23
Difference between mitosis and meiosis
Mitosis- cell divides by copying the DNA-cell splits- new cell with normal number of chromosomes
Meiosis- contains 1/2 sets of chromosomes
The trait seen in person (more powerful)
Dominate gene
Weaker and hides in the background (determine when two of them are present, may show up in future generations)
Recessive gene
Carrier
Has a recessive gene that is not visible
4 factors that contribute to multiple births
- History of family
- Increased hormones naturally
- Fertility drugs
- Age (32-36)
What are alleles?
The different possibilities for a given trait
What are genes?
The sequence of DNA that codes for a protein and thus determines a trait
Who is the father or genetics?
Gregor Mendel
What is the law of segregation?
It is when two alleles for each trait separate when gametes form