Lesson 4 Flashcards
What are the advantages of Asexual Reproduction?
No need to find a mate, perform mating behaviors, or have specialized anatomy.
Parent does not risk energy or predation for mating.
Offspring have genetic uniformity (clones).
What are the disadvantages of Asexual Reproduction?
Offspring lack genetic variability.
More difficult to adapt to new environmental conditions, such as diseases.
What are the advantages of Sexual Reproduction?
Offspring have genetic variability.
Offspring are better able to adapt to new environmental conditions (e.g., diseases).
What are the disadvantages of Sexual Reproduction?
Parents must expend energy to find a mate, perform mating behaviors, and possess specialized anatomy.
Risk of predation or wasting energy for mating.
What type of cells are involved in Mitosis?
Somatic cells (body cells).
What is the function of Mitosis?
Produces 2 genetically identical daughter cells.
What is the original number of chromosomes in Mitosis?
46 chromosomes (Diploid).
When does DNA replication occur in Mitosis?
Occurs once during Interphase (S-phase).
How many divisions occur in Mitosis?
1 division.
How many daughter cells are produced in Mitosis?
2 daughter cells.
How many chromosomes are in daughter cells produced by Mitosis?
46 chromosomes.
Are daughter cells from Mitosis diploid or haploid?
Diploid (2n).
Are clones produced in Mitosis?
Yes.
How does genetic variation occur in Mitosis?
No genetic variation; daughter cells are identical.
What type of cells are involved in Meiosis?
Gametic cells (sperm or egg).
What is the function of Meiosis?
Produces 4 genetically unique gametes.
What is the original number of chromosomes in Meiosis?
46 chromosomes (Diploid).
When does DNA replication occur in Meiosis?
Occurs once during Interphase (S-phase), before Meiosis I.
How many divisions occur in Meiosis?
2 divisions (Meiosis I and II).
How many daughter cells are produced in Meiosis?
4 daughter cells.
How many chromosomes are in daughter cells produced by Meiosis?
23 chromosomes (Haploid).
Are daughter cells from Meiosis diploid or haploid?
Haploid (n).
Are clones produced in Meiosis?
No.
How does genetic variation occur in Meiosis?
Genetic variation occurs through crossing over in Prophase I and independent assortment in Metaphase I.
