Genetics Flashcards
The study of inheritance
Genetics
The process in which genetic material is passed from parents to offspring
Inheritance
Well all have the same _____ we just have different alleles for those ____
Genes
What’s a gene
A sequence of bases that codes for a protein
What’s an allele
An alternate form of a gene
Meiosis is cell division that results in
Egg and sperm
Why is Meiosis important?
Because it splits up chromosomes in different combinations
Each cell has __ pairs of chromosomes
23
Matching pairs of chromosomes are called
Homologous
What’s the difference between Autosomes and Sex chromosomes
Autosomes- chromosomes that everyone has
Sex chromosomes- chromosomes that determine someone’s sex
A cell with half of the number of chromosomes would be called
Haploid
How many cells does meosis result in
4
2 differences and 1 similarity between meiosis and mitosis
Difference 1- meosis has crossing over and mitosis doesn’t
Difference 2- mitosis ends with 2 cells while meosis ends with 1
Similarity- both a process of cell division
When chromosomes swap DNA
Cross over (during meiosis)
Egg and sperm and called
Gametes
During gametogenisis a male produces _ sperm and a female produces _ egg
4, 1
Cells that don’t become egg cells and are absorbed by the body
Polar bodies
When egg and sperm come together
Fertilization
The father of genetics
Gregor Mendel
Allele that is masked by another
Recessive
What is Mendel law of segregation
Alleles separate when egg/sperm are formed, and each gets 1 allele
What is Mendels law of independent assessment?
Chromosomes combine randomly with eachother