historical ideas about reproduction and development Flashcards

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1
Q

antiquity

A

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

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2
Q

Aristotle’s mistakes

A
  1. mammals’ semen provides a force (edios)
    menstrual blood builds itself into an individual
  2. traits of individual= struggle/ a fight between the traits
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3
Q

1830-early 20th century

A

discovery of cells
egg and sperm aka fertilization.

cell specialization (germ layers), cell heridity

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4
Q

pangenesis

A

every cell contributes to genetic info to reproductive cells

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5
Q

preformation

A

miniature adult inside egg/sperm

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6
Q

epigenesis

A

development starts from undifferentiated cells (which is true)

some force caused cell specialization and development to take place

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7
Q

only certain genes passed from one cell to another during…

A

development. except gametes

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8
Q

early 20th century- present

A

understanding how genetic information is passed from parent to offspring

haploid/diploid cells

focus on the relationship between gene expression and development.

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