reproduction notes - o Need 2 parents Counterproductive if...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
08/01/2007 12:17:00 Asexual reproduction – reproduction without gametes Advantages o Only need one individual to reproduce o No genetic change – good if environment is stable o All individuals are producing offspring (none wasted) o More efficient at passing on genes Disadvantages o No recombination of genes Unicellular: fission – mitosis Multicellular organisms: o Budding o Gemmulation o fragmentation Sexual reproduction – reproduction by the union of gametes Advantages o Genetic recombination – offspring are genetically unique Favorable when environment is changing Disadvantages
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: o Need 2 parents Counterproductive if conditions are stable o Only half of population (females) are producing offspring Males are wasting energy o Less efficient at passing on genes – offspring only inherit half ← STDs ← ← zygote – single-cell form ← 4-5 days before embryo attaches to uterine wall ← embryo isn’t connected to mother until implantation (no pregnancy) ← growth, cell replication, differentiation ← amniotic cavity ← amnion ← ___ membrane is unique to mammals 08/01/2007 12:17:00 ← 08/01/2007 12:17:00 ←...
View Full Document

This note was uploaded on 04/06/2008 for the course SCI 101 taught by Professor Singh during the Spring '07 term at Saint Mary's University Texas.

Page1 / 3

reproduction notes - o Need 2 parents Counterproductive if...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online