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ISB 204 Exam 2--Assisted Reproduction
N/A
18
Biology
Undergraduate 1
03/15/2012

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Term
implantation
Definition
this takes place when the embryo is at the blastocyst stage
Term
fertilization
Definition
during this process two haploid cells unite to form a diploid cell
Term
development after implantation
Definition
unspecialized cells of the blastocyst develop into the three types of specialized cells found in adults
Term
inner cell mass
Definition
group of cells in blastocyst that develops into baby
Term
blastocyst
Definition
hollow, fluid-filled ball of cells formed early in human development
Term
trophoblast
Definition
cells in the blastocyst that develop into the placenta
Term
embryo
Definition
developing human for the first eight weeks following the first zygotic division
Term
zygote
Definition
developing organism from the time of fertilization to the time of the first cell division
Term
meiosis
Definition
start with one diploid cell, side info up into each cell and end up with four cells
Term
recombination
Definition
mixing things up all different
Term
process taking place between fertilization and implantation
Definition
cell division and mitosis
Term
after fertilization, what processes are important in producing differences in different cell types during embryonic development
Definition
-regulation of transcription
-translation
-all same DNA but expressing genes differently
Term
in vitro fertilization (IVF)
Definition
putting together sperm and egg in pitri dish--in lab
Term
intracytoplasmic sperm injection (ICSI)
Definition
-puting sperm into an egg using microscopes and needles
-sperm is introduced into the egg using a needle
Term
importance of blastocyst in IVF
Definition
higher rate of embryo sticking
Term
transfer
Definition
during this stage, not as much risk with getting so many embryos but still same rate of fertilization in mother
Term
ytoplasmic transfer
Definition
-something in cytoplasm causes defects
-takes nucleus from older womens egg and injects into young womens egg
-uses cytoplasm of younger womens egg to develop
Term
nuclear transfer
Definition
-form of cloning, injecting nucleus into another egg
-need sperm, nucleus from an egg, egg with no nucleus
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