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October 10, 2012
Ch. 2 Study Guide
Chromosome – a threadlike strand inside the nucleus that is made up of DNA
Mitosis – the process of cell division
Asexual Reproduction – reproduction by simple cell division
Sexual Reproduction – the form of reproduction in which cells from two parents unite to
form a zygote
Meiosis – the process that reduces the number of chromosomes in reproductive cells
Life Cycle – the series of distinct stages of life that most organisms grow and mature through
Direct Development – a kind of growth where organisms keep the same body features as
they grow larger
Metamorphosis – a change in the shape or characteristics of an organism’s body as it grows
Inherited trait – a characteristic that is passed from parent to offspring
Dominant trait – a strong trait
Recessive trait – a weak trait
Gene – structures on a chromosome that contain the DNA code for a trait an organism
Inherits
WARNING:
TEST APPROACHING
October 10, 2012
Ch. 2 Study Guide Continued
What is the name of the cell that begins the development of the chick? An egg
After how many days is the chick fully developed? 21 days
What cell process is responsible for regeneration? Mitosis
What cell process is involved in asexual reproduction? Mitosis
What is the name of the final stage of an organism’s life cycle? Adult
What are the three stages of incomplete metamorphosis? Egg, Nymph, Adult
During the third stage of complete metamorphosis, the larva becomes __________.
a) A cocoon
b) a pupa
c) an egg
d)an adult