Reproduction
offspring cell is to daughter as parent cell is to _____.
mother
Asexual reproduction requires only ____ parent.
one
Give the "fancy name/scientific vocabulary" for sex cells.
gametes
A bacterial cell duplicates its DNA, stretches, and splits into two.
binary fission
How many pairs of chromosomes does a healthy human cell contain?
23
The primary purpose of reproduction is ______ ________________.
species continuation
Asexual reproduction results in offspring that are ________ identical to the parent.
genetically
What two cells are necessary for sexual reproduction?
egg and sperm
In order to deposit sperm, a male salamander wraps around a female salamander while she is laying a string of eggs.
external fertilization (sexual reproduction)
A small nub forms on a parent organism, where it grows until it is mature enough to survive on its own; then, it falls off and lives as a clone.
budding
fertilization
mitosis
Offspring that are the result of sexual reproduction are genetically ________ compared to their parents (and all others).
unique
A fruit bat carries pollen from tree to tree while eating.
plant pollination
Record the compliment...
AAGCTACGCTAC
TTCGATGCGATG
Sex cells are produced, and reproduce through this type of cell division.
meiosis
Give 2 advantages of asexual reproduction.
- time and energy efficient
- requires no mate/only 1 parent needed
- rapid population growth
Give 2 disadvantages of sexual reproduction.
- time and energy wasted/inefficient
- mate/2 cells needed
- few offspring per cycle
Porthos plants are "cut" near a plant node. The "cutting" is placed in water until it grows roots. The new porthos plant can then be placed in proper soil to grow an identical version of its parent.
vegetative propagation
50% of your DNA comes from...
each parent cell/egg and sperm/mom and dad
Give the cell cycle phase that is where most cells spend their lives, followed by the 4 phases of mitosis.
interphase, prophase, metaphase, anaphase, telophase
Give the GREATEST disadvantage of asexual reproduction.
No genetic variation/uniform offspring
Give the GREATEST advantage of sexual reproduction.
- genetic variation/unique offspring
Existing in relatively isolated locations, some female Komodo Dragons will spontaneously birth offspring that are clones.
parthenogenesis
What asexual strategy are we attempting to observe with our specimen in the cabinet?
sporogenesis and fission