Bio Study Guide 2
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Bio Study Guide 2
BioStudy Guide Unit 2
Purpose of Mitosis:
growth, repair, replacement, and asexual reproduction
How does cytokinesis differ between animal and plant cells?
cleavage furrow in animal cells ; cell plate in plant cells
When does replication occur?
during S stage of interphase
What is the method used by bacteria to produce more cells?
What is the difference between a benign and malignant tumor?
Benign = one location ; malignant = spreading
During which phase of mitiosis do the chromosomes line up in the middle?
What is the purpose of meisosis?
to produce haploid gametes
If an organism has a diploid number of 18, how many chromosomes will be in one of its liver cells?
If an organism has a diploid number of 18, how many chromosomes will be in a gamete?
How many chromosomes does a person with trisomy 21 have in a somatic cell?
In humans, how many sex chromosomes are in a gamete?
What is a zygote?
a fertilized egg
Why does a seed need to have endosperm?
Stores food for developing embryo
What is the purpose/function of the flower?
What is the correct order for the following from when the flower blooms?
pollination, fertilization, seed dispersal, germination
For every cell that begins spermatogenesis, how many sperm are formed?
A fertilized eff is called a
When you eat a fruit you are eating a
Genetic variation is due to what three things?
Random fertilization, crossing over, independent assortment
Where does oogenesis take place?
What is non-disjuntion?
when chromosomes do not separate correctly during meiosis resulting in some gametes that have too many chromosomes and gametes with too few.
What is another term for body cells?
How many chromosomes are in a gamete?
The haploid number
How many autosomes in a human sperm?
When cancer spreads we say it has
What is the function of the polar bodies?
Have a place for the chromosomes to go during the formation of a haploid egg.
How many sex chromosomes in a human sperm?