SEXUAL AND ASEXUAL REPRODUCTION WORKSHEET.docx

worksheet

1. Name: ______________________________________ Grade 7 Section: _____________________ Date: FEB 13, 2023 - MONDAY
SEXUAL AND ASEXUAL REPRODUCTION WORKSHEET
Asexual Reproduction - one parent produces offspring with genetic makeup that is identical to the parent’s. It occurs in most simple,
single celled organisms such as bacteria and some multicellular organisms such as fungi, some plants, and even a few animals.
Sexual Reproduction - two parents produce a new organism that has a combination of genes from both parents, and it not identical to
either one. It occurs most often in complex organisms.

1) Complete the following table comparing asexual and sexual reproduction. (You may used another sheet of paper for your
answer just attach it to this worksheet)
Asexual Reproduction Sexual Reproduction
Number of parents
Involvement of Gametes ( Sex Cells)
Time Period
Advantages
Disadvantages

2) Complete the following chart below to answer the questions.
Description
Type of Reproduction (Asexual
or Sexual)
Example of organism/drawing
Mitosis - division of the nucleus of a cell that
produces two genetically identical daughter cells

Budding - new organism develops by growing off
the side of the “adult”

Parthenogenesis - embryo develops from an
unfertilized egg

Fragmentation - a piece of an organism breaks
off and produces a genetically identical new
organism

Fertilization - combination of gametes (egg and
sperm) to produce a genetically unique offspring

2.  Sexual and Asexual Reproduction
Write on the Right Side
 Sexual vs Asexual Reproduction
Two parents each contribute a sex cell offspring Half of the offspring’s genes come from each parent Offspring are not
identical to the parents Asexual Reproduction One organism produces one or more organisms that are identical to itself
 Types of Asexual Reproduction
Binary Fission: (occurs in prokaryotes such as bacteria) Parent splits into twoBudding: tiny buds develop on an
organism’s body and grow into another organism (ex: in yeasts, hydras, and sponges)Spores: produced by one parent,
they are light so the wind can carry them (ex: fungi and ferns produce spores)Vegetative reproduction: new plants grow
from stems, roots, or leaves (ex: potatoes)
 Sexual Reproduction Fertilization: when sex cells join together to produce a cell called a zygote, which develops into
a new organism
 Advantages (do not have to write)
Asexual Reproduction Organisms can reproduce quickly Offspring and parents are identical All offspring can
produce more offspring Sexual Reproduction There is genetic variation (offspring are not identical) in the population
which helps the species survive in a changing environment