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Worksheets

B.Sc. students

Total questions: 57

Worksheet time: 57mins

Name
Class
Date
1.
The science of describing, classifying, and naming living things is called:
a)
Geology
b)
Biology
c)
Taxonomy
d)
Chemistry
2.
The scientific name for an organism is made from the:
a)
class and family name
b)
genus and species name
c)
domain and kingdom name
d)
kingdom and phylum name
3.
What is the correct order of taxonomy?
a)
Kingdom, pylum, class, species, genus, family, class
b)
Species, genus, family, order, class, phylum, kingdom
c)
Kingdom, phylum, class, order, family, genus, species
d)
species, phylum, order, class, kingdom, family, genus
4.
 Where is the ovule found in a flower?
a)
Petals
b)
Style
c)
Nectary
d)
Ovary
5.

The Placentation in Dianthus

a)

Superficial

b)

Parietal

c)

Free Central

d)

Basel

6.

Omega taxonomy is

a)

Modern taxonomy

b)

Classical taxonomy

c)

Alpha taxonomy

d)

Old taxonomy

7.
Examine this seed. Would you expect it to produce a dicot or monocot plant?
a)
monocot
b)
dicot
c)
Corn
d)
WI Fast Plant
8.

Which component is not found in phloem of angiosperms?

a)

Albuminous cell

b)

Sieve tube

c)

Companion cell

d)

Wood fibre

9.

What type of vascular bundles are A, B and C?

a)

Radial; close collateral conjoint; open collateral cojoint

b)

Close collateral conjoint; open collateral conjoint; Radial

c)

Open collateral conjoint; Close collateral conjoint; Radial

d)

Bicollateral; Concentric; Radial

10.

At places, the cork contains aerating pores called –

a)

Stomata

b)

Lenticels

c)

Hydathode

d)

Pneumatophore

11.

An individual unit of the calyx is ...........

a)

Sepal

b)

Petal

c)

Anther

d)

Stamen

12.

The nutritive cells ................nourishes the developing microspores.

a)

Epidermis

b)

Tapetum

c)

Endothecium

d)

Intine

13.

In orchids, the pollen grains forming pollen-masses are called ............

a)

Pollinium

b)

Tapetum

c)

Endothecium

d)

anther

14.

The stalk of the ovule is called .......

a)

Chalaza

b)

Funicle

c)

Nucellus

d)

Integument

15.

A typical embryo sac contains ............ nuclei.

a)

four

b)

six

c)

eight

d)

seven

16.

The body of the ovule is completely inverted in ............. ovule.

a)

Orthotropous

b)

Anatropous

c)

Circinotropous

d)

Amphotrpous

17.

Actual union of the male gamete with the female gamete

a)

Fertilization

b)

Pollination

c)

Megasporogenesis

d)

Microsporogenesis

18.

In................. pollen grains are transferred from an anther of one flower to the stigma of another flower.

a)

(a) fertilization

b)

(b) self-pollination

c)

(c) cross-pollination

d)

(d) microsporogenesis

19.

When pollination takes place with the help of insects, it is

called ........

a)

(a) anemophily

b)

(b) hydrophily

c)

(C) entomophily

d)

(d) chiropterophily

20.

The pollen grain is the first cell of .........

a)

(a) male gametophyte

b)

(b) female gametophyte

c)

(c) megasporangium

d)

(d) archesporium

21.

................ pollen tube enters through micropyle of the ovule

a)

(a) chalazogamy

b)

(b) mesogamy

c)

(C) porogamy

d)

(d) microgamy

22.

In ................ both the male gametes take part in the fertilization i.e. the fertilization takes place twice.

a)

(a) triple fusion

b)

(b) double fertilization

c)

(C) syngamy

d)

(d) microsporogenesis

23.

Cocus nucifera is the classical example of ........ endosperm.

a)

(a) helobial

b)

(b) cellular

c)

(c) nucellar

d)

(d) apomixis

24.

In angiosperms, ............ is the nutritive tissue in the embryo sac.

a)

(a) zygote

b)

(b) endosperm

c)

(c) antipodal cells

d)

(d) secondary nucleus

25.

When seeds are with endosperm, it is referred to as .......

a)

(a) albuminous

b)

(b) exalbuminous

c)

(c) monocot

d)

(d) dicot

26.

The helobial type of endosperm mostly reported in ............

a)

(a) dicots

b)

(b) monocots

c)

(c) gymnosperms

d)

(d) pteridophytes

27.

The first step in translation is

a)

binding of mRNA to the small ribosomal subunit

b)

binding of the two ribosomal subunits to each other

c)

binding of mRNA to the two ribosomal subunits

28.

The DNA in a eukaryotic chromosome is best described as

a)

a single linear double-helical molecule

b)

multiple linear double-helical molecules

c)

a single linear single-stranded molecule

29.

Beadle and Tatum's experiment showed that each enzyme is specified by a single

a)

gene

b)

mutation

c)

chromosome

30.

Bacterial plasmids

a)

are circular

b)

cannot replicate when cells divide

c)

are always covalently joined to the bacterial chromosome

31.

Bacterial plasmids

a)

are circular

b)

cannot replicate when cells divide

c)

are always covalently joined to the bacterial chromosome

32.

Select the structure that is mediate the active exchange of proteins and ribonucleoproteins between the nucleus and the cytosol

a)

nuclear pore complex

b)

exocytosis

c)

endocytic vesicles

33.

The Mitochondrial outer membrane is composed of a high copy number of the protein:

a)

porin

b)

importin

c)

aquaporin2

34.

Select the Peroxisomal disorder

a)

an immunodeficiency syndrome

b)

Zellweger syndrome

c)

Pearsonsyndrome

35.

Select disorder, which associated with abnormal sphingolipid metabolism

a)

Tay-Sachc disease

b)

Ehlers Danlossyndrom

c)

Kartageners syndroms

36.

How called the protein, which involved in facilitated diffusion

a)

carrier

b)

negotiator

c)

translator

37.

Select the proteins that moves along microtubules in the direction of the plus end

a)

kinesins

b)

profilins

c)

actin

38.

Select the second messenger that play a central role in the cell signaling pathway:

a)

cyclic guanosine monophosphate (cGMP)

b)

cyclic adenosine monophosphate (cAMP)

c)

inositoltriphosphate (IP3)

39.

Select the structure in which located kinetochore

a)

Centromere

b)

kinesin

c)

centrosome

40.

DNA is synthesized and replicated during this period in the cell cycle in preparation for mitosis:

a)

S phase

b)

G1 phase

c)

G0 phase

41.

Select the phase in which the chromosomes are decondense, are formed the nucleolus and the nuclear envelope:

a)

telophase

b)

metaphase

c)

anaphase

42.

Select the phase in which the chromatids are separated toward the poles of the cell

a)

telophase

b)

anaphase

c)

prophase

43.

If both parents are heterozygous for a dominant allele, what percentage of children will inherit the abnormal?

a)

75%

b)

50%

c)

25%

44.

Select the type by which inherited colorblindness (daltonism):

a)

X-linked

b)

Y-linked

c)

autosomal recessive

45.

Select the karyotype formula by Turner syndrome:

a)

47, XX, 18+

b)

45, XO

46.

Major form of programmed cell death is:

a)

acidosis

b)

aromorphosis

c)

apoptosis

47.
Another name for GMO (Genetically Modified Organsim) is ____________.
a)
Transgenic
b)
Transplanted
c)
Transducted
d)
Plasmid
48.
How do you create recombinant DNA?
a)
First, cut the gene and plasmid with the same restriction enzyme. Second, insert the gene into the plasmid. 
b)
First, insert the gene into the plasmid.  Second, cut the gene and plasmid with the same restriction enzyme. 
c)
First, cut the gene and plasmid with different restriction enzymes. Second, insert the gene into the plasmid. 
d)
First, insert the gene into the plasmid.  Second, cut the gene and plasmid with different restriction enzymes. 
49.
Step 1?
a)
Rectriction Enzyme, EcoRI, cuts the plasmid once
b)
Rectriction Enzyme, EcoRI, cuts the plasmid twice
c)
Foreign DNA is inserted into plasmid
d)
Recombinant DNA is cut
50.
Which technique would most likely be used by forensic scientists?  
a)
Cloning
b)
Gene Therapy
c)
DNA Fingerprinting
d)
Karyotyping
51.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
52.
Snapdragon flowers come in red, pink and white.  What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
53.
Which best describes the process shown?
a)
mutation in which the DNA content of the gene is ltered
b)
segregation of sister chromatids
c)
condensation and segregation of the alleles
d)
crossing-over which alleles are exchanged
54.
What phase is  shown in the picture?
a)
anaphase 1
b)
anaphase 2
c)
metaphase 1
d)
telophase 1
55.
The inherited combination of alleles is known as the offspring's
a)
heredity
b)
phenotype
c)
genotype
d)
redigree
56.

A technique that places a gene into a cell to correct a hereditary disease or to improve the genome.

a)

Gene therapy

b)

Human genome project

c)

Pedigree

d)

Sex-linked trait

57.

An inherited disease or disorder that is caused by a mutation in a gene or by a chromosomal defect.

a)

Genetic disorders

b)

Linked genes

c)

Carriers

d)

Genetic counseling

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