Reproduction
___________ is a defining characteristic of life, by which organisms give rise to offspring.
What is reproduction?
True of False
Two parent cells are required for asexual reproduction.
False
Give one disadvantage of asexual reproduction.
There is no genetic variation among offspring.
Spores may fail to find a suitable place for germination.
This may result in overcrowding if the organism spreads in one area.
________ occurs when a parent cell splits into two identical daughter cells of the same size.
What is Binary Fission?
What are the two hormones used in tissue culture?
Auxin and cytokinin
Define reproduction.
Give one advantage of asexual reproduction.
Rapid multiplication
Dispersal and Spread
Only one parent is required.
True or False
Genetic variation occurs among the offspring of organisms that reproduce asexually.
False.
Give an example of an organism that reproduces using the budding technique.
What is single-celled yeast?
In high-cytokinin and low-auxin conditions, shoot organogenesis will begin. In high-auxin and low-cytokinin conditions, root organogenesis will occur.
What does reproduction involve?
Reproduction involves the transmission of genetic material from one generation to the next.
Name one organism in which rapid multiplication compensates for large losses at stages in the life cycle.
Malaria parasite or tapeworm
Overcrowding results from ______ .
Organisms spreading in only one area.
What are the types of asexual reproduction? SELECT ALL THAT APPLY
a) binary fission
b) hermaphroditism
c) budding
d) fragmentation
What are a) binary fission, c) budding and d) fragmentation?
What are the two types of mediums used in tissue culture?
Broth and Agar
What is Asexual Reproduction?
Reproduction by a single organism without the production of gametes.
How is asexual reproduction more time and energy efficient than sexual reproduction?
A mate is not needed for asexual reproduction, as a result, time and energy are not wasted trying to find one.
Why may species that reproduce asexually be only suited to one habitat?
There is no variation among the species.
What are the two types of vegetative propagation?
Natural Propagation and Artificial Propagation
What does the hormone auxin do in plant development?
It stimulates root development.
How does asexual reproduction occur?
It occurs by cell division during mitosis to produce two or more genetically identical offspring.
Because there is no variation, _______ may affect all the individuals in a population.
Disease
Explain fragmentation and give an example of an organism that reproduces this way.
A form of asexual reproduction where plants grow from a small part of a parent plant that falls to the ground, while the parent plant regrows the small part that fell off.
Starfish, liverworts, and mosses reproduce by this means.
List the 5 stages, in order, of the tissue culture procedure.
1. Initiation Stage, 2. Multiplication Stage, 3. Root Formation, 3. Shoot Formation, 4. Acclimatization