historical ideas about reproduction and development

Question 1

antiquity

Answer 1

atmospheric principle: different body parts provide material for the offspring of an individual

Question 2

Aristotle’s mistakes

Answer 2

1. mammals’ semen provides a force (edios)
   menstrual blood builds itself into an individual
2. traits of individual= struggle/ a fight between the traits

Question 3

1830-early 20th century

Answer 3

discovery of cells
egg and sperm aka fertilization.

cell specialization (germ layers), cell heridity

Question 4

pangenesis

Answer 4

every cell contributes to genetic info to reproductive cells

Question 5

preformation

Answer 5

miniature adult inside egg/sperm

Question 6

epigenesis

Answer 6

development starts from undifferentiated cells (which is true)

some force caused cell specialization and development to take place

Question 7

only certain genes passed from one cell to another during…

Answer 7

development. except gametes

Question 8

early 20th century- present

Answer 8

understanding how genetic information is passed from parent to offspring

haploid/diploid cells

focus on the relationship between gene expression and development.