Sexual vs Asexual Reproduction DO NOW Hwk on

DO NOW- Hwk on desk! 1. Which cell part is green, found only in

Homework Please clear everything except your homework off of your desk n We will

GOAL To compare forms of sexual and asexual reproduction n To understand the process

Sexual Reproduction n Sexual n 1. 2 parents Reproduction n 2. Sex cells: sperm

Sexual Reproduction n Sexual n 5. Examples Reproduction – Humans, some plants, mammals, fish,

Asexual Reproduction n Asexual n 1. One parent Reproduction n 2. No sex cells

Types of Asexual Reproduction n Binary Fission n n 1. Organism divides in half

Types of Asexual Reproduction n Budding 1. Small bud grows out of parent cell

Types of Asexual Reproduction n Regeneration n 1. Repair/ grow lost body parts n

What type of reproduction is this? ? ? Explain…

Mitosis n Mitosis 1. Cell division n 2. Causes multicellular organisms to grow (even

Mitosis n Phase 1 - Interphase – Chromosomes copied – Cell resting – Threadlike

Mitosis n Phase 2 - Prophase – Mitosis begins – Chromosomes are rodlike pairs

Mitosis n Phase 3 Metaphase – Chromosomes attach to spindle fibers – They line

Mitosis n Phase 4 - Anaphase – Sister chromatids pull apart – One sister

Mitosis n Phase 5 - Telophase – 2 new nuclei form – Chromosomes are

Mitosis n Phase 6 Cytokinesis – Cytoplasm pinches in to form 2 new identical

Which phase of mitosis is this? Explain…. .

Slides: 38

Download presentation

Sexual vs. Asexual Reproduction

DO NOW- Hwk on desk! 1. Which cell part is green, found only in plants and is the site of photosynthesis? n 2. Which cell part acts as the cleanup crew, recycling old cell parts? n 3. Which cell part is found in both animal and plant cells and produces the energy for the cell? n

Homework Please clear everything except your homework off of your desk n We will go over it together n It is your responsibility to make the corrections n

GOAL To compare forms of sexual and asexual reproduction n To understand the process of mitosis n

Sexual Reproduction n Sexual n 1. 2 parents Reproduction n 2. Sex cells: sperm and egg n 3. Sperm and egg join= fertilization n 4. Offspring look different from parent (mixed DNA)

Sexual Reproduction n Sexual n 5. Examples Reproduction – Humans, some plants, mammals, fish, reptiles, etc.

Sexual Reproduction

Asexual Reproduction n Asexual n 1. One parent Reproduction n 2. No sex cells n 3. Offspring produced by cell division n 4. Offspring identical to parent (same DNA) n 5. Several types in plants and animals

Types of Asexual Reproduction n Binary Fission n n 1. Organism divides in half 2. 2 identical daughter cells produced 3. Daughter cells are half the parent’s size 4. Daughter cells grow, then divide too 5. In bacteria

Types of Asexual Reproduction n Budding 1. Small bud grows out of parent cell n 2. Two different sized cells made (with identical DNA) n 3. Bud breaks off and grows n 4. In yeast and hydra n

Types of Asexual Reproduction n Regeneration n 1. Repair/ grow lost body parts n 2. Left over cells divide to make more cells n 3. Lobsters, starfish, lizards

What type of reproduction is this? ? ? Explain…