1.
The finest known lenses that were produced around 1632-1723 produced magnifications up to about
2.
Under blue light, Charles A. Spencer microscope could produce magnification up to about
3.
The group of organism that inhabit a particular area and interact with one another form a?
4.
The DNA is a three dimensional structure that is accepted today and for which a nobel prize was later awarded, was first proposed and demonstrated by_____
5.
The terms 'in vivo' and 'in vitro' means _____ and _____ respectively
6.
All the following are light illuminated except
7.
When a homozygous tall plant was crossed with a homozygous dwarf plant, the f1 offspring were selfed to produce the f2 offspring. What is the phenotypic and genotypic ratios respectively?
8.
The vegetable with botanical name Allium cepa is
9.
One of the following is absent in chemical combination of DNA
10.
One of the following statements is incorrect
Hint
11.
On of the following is not an example of DNA Replication
12.
Avery, Macleod and Mccarty showed that the transforming principles consist entirely of DNA in what year?
14.
According to specific pairing in DNA molecules
15.
Thymine (T) and Cytosine (C) are 2 types of
Hint
16.
The study of detailed structure of tissues making up a particular organ is
17.
Transpiration is high under which of the following conditions
18.
Which of the three conclusions of Theodore Schwann about cells was proven wrong?
19.
The molecule called deoxyribonucleic acid (DNA) was discovered by Friedrich miescher in
20.
During his experiment, Hooke actually saw the dead cell walls of plant cells (cork), and he published these description in a book called
21.
______ is the main chemical components of the primary plant cell wall.
22.
Some prokaryotes have a variety of shapes and sizes, this is referred to as
23.
--------- is known as the father of microscopy
24.
Protein contain the following elements except
25.
The Botanical name of Sugarcane is
26.
All but one of the following statements is correct
27.
How many bases makes a codon?
28.
One of the following is incorrect about the difference between RNA and DNA
29.
One of the following scientific discoveries was mismatched
a. 1674 – Leeuwenhoek discovered protozoa.
b. 1838 – Schleiden and Schwann proposed cell theory.
c. 1858 – Rudolf Virchow expounds his theory
d. 1959 – Siemens produced the first commercial TEM
e. 1965 – Cambridge Instruments produced the first SEM
f. 1985 – Tsien identifies mutant of GFP
g. 1989 – Hamilton and Baulcombe discover siRNADeselect Answer
30.
According to Griffith’s experiment in 1928 the mouse lives when
(i) injected with rough strain bacteria
(ii) injected with smooth strain bacteria
(iii) heat killed smooth bacteria +non heat killed Rough bacteria injected in mouse
(iv) injected with heat-killed smooth strain bacteriaDeselect Answer