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Chapter 29
1.
The
characteristic
features
of
a
cell
are
controlled
by
its
(1)_______________.
2.
To prevent (2)_______________ being wasted, some genes can be
switched on and off as required.
3.
The operon (Jacob-Monod) hypothesis states that a structural gene remains
switched off while its (3)_______________ gene is combined with a
(4)_______________ from a regulator gene. The structural gene becomes
switched on and codes for its protein when an (5)_______________
prevents the repressor combining with the operator gene.
4.
All the chemical processes that occur in a living organism are known
collectively as its (6)_______________.
5.
Each stage in a metabolic (7)_______________ is controlled by an enzyme.
6.
Production of each (8)_______________ is controlled by a particular gene
(or group of genes).
7.
A (9)_______________ gene is unable to code the information needed to
produce its enzyme. Lack of this enzyme may lead to an inborn
(10)_______________ of metabolism such as (11)_______________.
G R Davidson
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Chapter 29
8.
During (12)_______________ cells become specialised to perform specific
(13)_______________.
differentiation enzyme error functions genes
inducer metabolism mutated operator pathway PKU
repressor resources
----------Word Bank----------
G R Davidson
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