This page requires a JavaScript-enabled browser
Instructions on how to enable your browser are contained in the help file.
Biology 12 Chapter 21
Development and Aging - 9
1.
Which do play important role in development?
a) Only cytoplasm
b) Only nucleus
c) None of them
d) Both nucleus and cytoplasm
2.
What is the role of cytoplasm in development?
a) Only expression of genes
b) Only selection of genes
c) Both selection and expression of genes
d) None of them
3.
Morphogenetic determinants are present in………………?
a) Golgi complex
b) Cytoplasm
c) Nucleus
d) Mitochondria
4.
Which device is used to divide blastula to produce twins?
a) Embryonic developer
b) Micromanipulator
c) Incubator
d) Microscope
5.
Capacity of some cells to evoke specific developmental response in others is called…………?
a) Embryonic development
b) Cytoplasmic segregation
c) Embryonic induction
d) Inductive interactions
6.
Who gave the concept of Embryonic induction?
a) Hilde Mangold
b) Hans Spemann and Hilde Mangold
c) Hans Drieschs
d) Hans Drieschs and Hilde Mangold
7.
Hans Spemann and Hilde Mangold work on the………….?
a) Reptiles embryos
b) Human embryos
c) Amphibians embryos
d) Birds embryos
8.
In amphibian embryo ectoderm from dorsal lip of blastopore becomes…………….?
a) Neural crest
b) Neural tube
c) Neural plate
d) Neural groove
9.
If a piece of ectoderm from dorsal lip of blastopore is placed in culture media, it develops into………………?
a) Central nervous system
b) All of them
c) Peripheral nervous system
d) Defective nervous system
10.
At which stage ectoderm from dorsal blastopore lip was cut?
a) Neurula
b) Gastrula
c) Blastula
d) Morula
This is more feedback!
This is the feedback!
