Cell Inheritance Flashcards
life cycle in a diploid organism
- fertilization
- zygote
- embryo
- individual
- meiosis
- gametes
life cycle in the germ line
- cell cycle with mitosis
- cell cycle with meiosis
- cell cycle with cell fusion
- one chromosome only
- one copy of each gene
- chromosome is “naked”
prokaryotes
proteins associated with DNA
histones
location of DNA material in prokaryotes
nucleoid
eukaryotic chromosomes are _____ during interphase while _____ during mitosis
- coiled
- supercoiled1\
chromosome that determine sex
sex chromosomes
chromosome that do not determine sex
autosomes
23rd pair or the 45th and 46th chromosome determine ______
gender
the other 44 chromosomes that carry non-sex-related genes only
autosomes
large chromosome with a centromere in the middle
X chromosome
small chromosome with a centromere near the top
Y chromosome
fundamental process
cell division
why is cell division necessary?
- all cells came from pre-existing cells
- to replace worn out cells
- for growth
- for production of differentiated cells
functional components of testis
- seminiferous tubules
- interstitial components
prokaryotes divide by
fusion
eukaryotes divide through different ____
stages
where oogenesis occurs
ovary
results in genetically identical eukaryotic cells
mitosis
results in genetically different cells
meiosis
basis for asexual reproduction
mitosis
basis for sexual reproduction
meiosis and fertilization
period of preparation
interphase
why is interphase not a resting place
growth and DNA synthesis occurs in this phase
cell cycle is controlled and _____
well-replicated
cell growth and normal functions
Gap 1
copies DNA
Gap 2