Embryology
Laboratory (BIO 309)
Fall 2005
Wed -
INSTRUCTOR: Darryl
L. Daley, Ph.D.
OFFICE: 107A Gravely
PHONE: 985-5235
- (E-Mail - ddaley@ncwc.edu)
OFFICE HOURS: Mon -
Tue -
Thur -
Fri -
Also by appointment
Web
site: http://
REQUIRED
TEXTS: Wright, Shirley J. 2005. A Photographic Atlas of Developmental Biology.
Morton Publishing Company,
GOALS:
1. Be
able to identify and explain chromosome activity during the major stages of
mitosis, oogenesis and spermatogensis in insects, amphibians and mammals.
2. Be
able to identify the basic developmental stages during cleavage, blastulation,
gastrulation and neurulation in invertebrates and amphibians.
3. Be
able to work with living fish embryos and describe the developmental stages
from cleavage to hatching.
4. Be
able to identify early developmental stages in chick embryos and work with
living chick embryos.
5. Be able to describe organogensis if major body systems in a
mammal.
Evaluation:
Practical on Labs 1-5 25% 250
Practical
on Labs 6-10 25% 250
Assignments
and quizzes 45% 450
(50
points per lab)
Attendance
5% 50
TOTAL POINTS POSSIBLE 100% 1000
GRADING WILL BE ON A STRAIGHT PERCENT
BASIS:
93% or Greater: A 76 - 79%: C+
90 - 92% : A- 73
- 75%: C
86 - 89% : B+ 70
- 72%: C-
83 - 85% : B 65
- 69%: D+
80 - 82% : B- 60
- 64%: D
Less than 60%: F
Attendance Points
Students with perfect attendance for the entire semester
will earn 50 points of attendance credit.
If you miss one lab, you will earn only 25 points. In addition, by missing the lab you will not
earn the points associated with the lab (50 points). Thus by missing a single lab a B grade would
drop to a C+.
Exam Policy
No make-up exams will be given, but see
the professor with a documented excuse in extreme situations
ATTENDANCE
Attendance
And Punctuality At All Laboratory Meetings Is Required!
If you are absent from a lab session you will not be allowed
to attend a different section's lab. If
you are absent twice from your lab section, you will be withdrawn from the
class, resulting in either a "W" or "F" depending on the
date withdrawn. If you miss a lab for an
unavoidable reason (e.g. a funeral, emergency hospitalization) and it is
documented (e.g. hospital bill), please let the professor know (ahead of time
if possible), and the professor will allow you to make up the lab or allow you
to attend another section. A note from
the Colleges nurse does not permit you to miss a lab due to illness unless the
nurse provides you with documentation stating specifically that you should not
be attending class. If you are late for
lab three times, this will count as one absence, and you will lose 25 of your
attendance points as if you had missed one entire lab. If a quiz was given at the beginning of lab
and you are late for the quiz, you will not be allowed to take the quiz.
Academic Integrity
Working with each other in study groups is encouraged and is
a great way of learning, but each student is to write his or her own
assignments individually; they are not to be written with another student. Refer to the catalog (p 78-79) for College's
policy on plagiarism and cheating.
Laboratory Schedule
Date Topic
08/24 Lab 1 Mitosis &
Oogenesis in rabbit and frog ovary (ADB,
Pages 67 & 68; Pages
39 - 52)
08/31 Lab 2 Spermatogenesis in grasshopper testis, frog
testis, rat testis, human &
other sperm cells (ADB Pages 17 - 38)
09/07 Lab 3 Cleavage in sea urchins, starfish and frogs
(ADB Pages 67 -
85)
09/14 Lab 4 Fertilization and early development living sea
urchins
Note:
Lab times dependent upon arrival of sea urchins (ADB Pages
53 - 66)
09/21 Lab 5 Blastulation and gastrulation in starfish and
frogs
(ADB Pages 87 -
104)
10/28 Lab 6 Neurulation and 4, 7 and 10 mm frog embryos
(ADB Pages 105 -
128)
10/05 Practical
on Labs 1-6
10/12 Lab 7 Japanese Medaka - live animals - Early stages & organogenesis
Note: Lab times are dependent upon arrival
of Medaka
10/19 Lab 8 Japanese Medaka - live
animals - Environmental effects experiment
Note:
No regular lab time - students will work in groups on individual
experiments
10/26 Lab 9 Live Chick embryos & Prepared slides on Avian organogenesis - 24 or 28,
48, 72 hr and 96 hr (ADB Pages 171 -
226)
11/02 Lab
10 Finish Avian
organogenesis & Amphibian organogenesis (ADB Pages 143 -
170)
11/09 Lab 11 Porcine organogenesis, 10mm embryos
(ADB Pages 227 -
270)
11/16 Practical on
Labs 7-11
11/23 No Lab - Thanksgiving Break
11/30 No Lab
ADB = A Photographic Atlas of Developmental Biology. 2005.
Shirley J. Wright. Morton Publishing Company.
Laboratory Safety
·
Absolutely no food, drinks,
gum, hard candy or cough drops in the lab.
·
If
you hurt or cut yourself, let the professor know
immediately even if it seems minor.
·
Dispose
of any broken glass (slides, etc.) in the "Glass Disposal" box.
·
Wearing
long pants and shoes instead of shorts and scandals will help protect you from
any chemical spills or broken glass.
·
Stains
and dyes will be used in the lab; you may not want to wear your best clothes.
·
Please
let the professor know if you have health concerns, such as allergies, so that
proper precautions can be taken.
Remember
·
You
are required to read each lab before
you come to lab.
·
For
some labs there will be pre-lab assignments or quizzes that will be completed
before doing the lab exercise.
·
You
are responsible for cleaning your work area before you leaving the lab.
·
We
will be studying preserved animals this semester in lab. Please treat the specimens with respect and
act responsible when handling them.
Note:
Students
with disabilities who believe that they may need accommodations in this class
are encouraged to contact the Office of Disability Support Services (DSS) at
985-5369 as soon as possible to coordinate and implement accommodations in a
timely fashion. The Office of DSS is located in the