Lecture 3 Flashcards
What is cytoplasm?
Check textbook
Where does cytoplasm get raw materials?
Digestive and respiratory systems.
What are carefully placed sets of genes?
Chromosome.
What are chromosomes?
Store and transmit genetic information.
What are genes?
Representations of segments of DNA. of DNA located along chromosomes.
What is DNA?
Substance of which genes and chromosomes are made.
Read about Meiosis
Textbook
What are the two types of twins?
- Fraternal/Dizygotic
2. Identical/Monozygotic
What are fraternal/dizygotic twins?
Two zygotes, or fertilized ova.
What are identical/monozygotic twins?
One zygote that divides into two individuals.
What are maternal factors related to fraternal twinning? *also see document for detailed table.
- Ethnicity
- Family history
- Age
- Nutrition
- Number of births
- Fertility drugs/ in-vitro fertilization
What are examples of dominant traits?
Dark hair, curly hair, normal vision, facial dimples.
What are examples of recessive traits?
Blonde hair, pattern baldness, straight hair, red hair.
What is X-Linked inheritance?
Read in text, but essentially about how men don’t have the extra X or Y to protect them, so they are more likely to die from other diseases/disorders.
