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WorksheetsSET 1_ BIOLOGY SB015 #MENUJU "A" PSPM 1
Total questions: 45
Worksheet time: 32mins
Name the other element of protein apart from carbon, hydrogen and oxygen
Iron
Nitrogen
Potassium
Phosphorus
Which of the following amino acids has a non polar side chain?
Serine
Valine
Threonine
Asparagine
Which of the following statement is NOT TRUE about leucocytes?
pigment haemoglobin is absent
contain a nucleus and organelle
generally larger than erythrocytes
important in the transportation of oxygen
A dissacharide formed by α -1,4 glycosidic linkage between their monosaccharide unit is
maltose
sucrose
fructose
lactose
The fundamental differences between RNA and DNA are
organic bases
bases, pentose sugar and the phosphodiester bond
bases, pentose sugar and glycosidic bond type
bases and pentose sugar.
The folded inner membrane of a mitochondrion is called
grana
stroma
matrix
cristae
What is the function of sodium-pottasium pump?
pumping of two Na+ into the cells and three K+ out of the cell
pumping of two Na+ out of the cells and three K+ into the cell
pumping of three Na+ into the cells and two K+ out of the cell
pumping of three Na+ out of the cells and two K+ into the cell
What is the CORRECT order of mitosis ?
1. Metaphase 3. Anaphase
2. Telophase 4. Prophase
4,1,2,3
2,3,1,4
4,1,3,2
1,2,3,4
Which of the following statement is TRUE about allele?
Allele are codes for recessive traits
alleles are alternative form of genes
recessive allele produces phenotype for heterozygous
when both alleles are same, the individual is heterozygous
A 1:2:1 phenotypic ratio in the F2 generation of a monohybrid crosses shows
multiple allele
polygenic inheritance
dominance
incomplete dominance
A cross between a dominant homozygous tall pea plant and a heterozygous tall pea plant would yield ratios of
one homozygous tall : three heterozygous tall
one homozygous tall : one heterozygous tall
three homozygous tall : one heterozygous tall
four heterozygous tall
In a type of mammals, genes for the albino is recessive to the brown hair genes. In an investigation, it was found that 72 out of 500 mammals are albino. What is the albino allele frequency in that population?
0.75
0.50
0.38
0.29
Purine bases in DNA consist of
adenine and cytosine
thymine and cytosine
adenine and guanine
thymine and guanine
Which of the following syndrome occurs when one of two X chromosomes is incomplete or missing?
Down syndrome
Turner syndrome
Klinefelter syndrome
Cri-du-chat syndrome
M and N are two types of mutagen with the following effects.
M - inhibit spindle formation during cell division
N - wrong nucleotide is inserted into the synthesized molecule
What are M and N?
M : Base analogues
N : X-rays
M : Colchicine
N : Intercalating agents
M : Intercalating agents
N : Colchicine
M : Ultraviolet rays
N : Base analogues
Meiosis is complete when
Primodial germ cells becomes oogonium
Oogonium becomes primary oocyte
Primary oocyte becomes secondary oocytes
Secondary oocytes become ovum
FIGURE above shows the female gametophyte of a plant.
Which of the structures i, ii, iii and iv will fuse with sperm to form food reserve for developing embryo?
i
ii
iii
iv
Which of the following is describes cell differentiation?
decrease in cell number
Specialization
Changes in shape and size of organs
Reversible increase in cell size
Water has a high specific heat capacity. This is an advantage for living cells because
the 75% water in a cell does not retain a lot of heat.
any change in temperature will cause a cell to heat up or cool down quickly.
a small increase in heat energy results in a relatively large rise in temperature
a large increase in heat energy results in a relatively small rise in temperature.
Which of the following statement is TRUE about carbohydrates?
All monosaccharide soluble in water.
Sucrose and lactose are example of polysaccharides.
All polysaccharides functions as long-term energy storage
Which of the following statement is TRUE about lipids?
Phospholipids have hydrophilic tails and hydrophobic heads.
Glycerol, a building molecule of triglyceride is soluble in water
Fatty acid consist of a short hydrocarbon chain with a-OH group at one end
Saturated fatty acid have double bond while unsaturated fatty acid have no double bond between the carbon atoms
A denatured protein molecule will
be diluted
changed its shape.
split into smaller molecules.
combined with another molecule
According to the Fluid Mosaic Model, proteins of the membrane are
Embedded in a lipid bilayer.
Confined to the hydrophilic region.
Confined to the hydrophobic region.
Spread over in the inner and outer surfaces.
Transport across membrane that is against the concentration gradient is known as
osmosis.
diffusion.
active transport.
passive transport.
A cell in the basal layer of the skin contains 46 chromosomes and divides by mitosis to produce new skin cells. After ten successive divisions, how many chromosomes will the basal cell have?
23
24
46
48
A man who carriers an X-linked allele will pass it on to
All his daughters
All his sons
Half of his daughters
Half of his sons
Night blindness is a condition in which the affected individuals have difficulty seeing in dim light. The allele for night blindness is recessive. A couple who are both carries for this gene have three children who have night blindness. What is the probability that their next child will be a carrier?
0
1/2
1/4
1
Determine the sequence of genes along a chromosome based on the following recombination frequencies:
A – B, 8 map units ; A – C, 28 map units ; A – D, 25 map units; B – C, 20 map units; B – D, 33 map units.
A – D – B – C
B – A – D – C
C – D – B – A
D - A – B – C
A population in Hardy-Weinberg equilibrium, 16% of the individuals show the recessive traits. What is the frequency of the dominant allele in the population?
0.84
0.36
0.6
0.4
Which of the following is TRUE about mutation?
Can be induced by ultraviolet rays.
Will not affect the base sequence of the DNA.
Does not change the genotype of an individual.
Can be inherited if it occurs in the epithelial cell.
Which of the following mutations have a harmful effect on an organism?
A single base-pair substitution.
A deletion of three bases in the middle of an intron in the gene
A single base deletion close to the end of the last exon in the
gene.
A single base deletion near the start of the first exon in the gene.
FIGURE above shows non-disjunction during meiosis of an organism. What will be the number of chromosomes for zygote if gamete P and Q fuse with normal gamete?
P : 3
Q : 5
P : 5
Q : 3
P : 7
Q : 9
P : 9
Q : 7
FIGURE 2 shows reproductive stages of flowering plant. Identify process J and K
J : Meiosis
K : Mitosis
J : Mitosis
K : Mitosis
J : Meiosis
K :Meiosis
J : Mitosis
K :Meiosis
FIGURE above shows a part of the seminiferous tubule. L, M, N and O represent cells in various stages of development. Choose the correct statement.
L : Differentiate from somatic cells
M : Differentiate from germ cells
L : Has haploid number of chromosome
M : Has diploid number of chromosome
L : Undergoes meiosis to form structure M
M : Undergoes mitosis to form structure O
L : Undergoes mitosis to form structure M
N : Differentiate to form structure O
The following are the consequences when ovaries are removed from a cancer patient EXCEPT
Not able to breastfeed a baby.
No menstruation and ovulation cycles.
No secretion of estrogen and progesterone
The secretion of LH and FSH will be declined.
Two molecules of monosaccharides shown in FIGURE above are connected by bond Y.
What is bond Y?
β-1,4 glycosidic bond
α-1,6 glycosidic bond
α-1,2 glycosidic bond
α-1,4 glycosidic bond
A strong covalent bond between amino acids that maintains the three dimensional structure of a polypeptide is
An ionic bond
A hydrophobic interaction
A hydrogen bond
A disulfide bridge
Which of the following organelle involves in the synthesis of lipids, phospholipids and steroids?
Ribosomes
Lysosomes
Mitochondria
Smooth endoplasmic reticulum
Which of the following organelles is the site for enzyme synthesis
Lysosomes
Ribosomes
Golgi body
Smooth endoplasmic reticulum
A beaker is divided into two halves, X and Y, by a membrane that is permeable to water and NaCl but not to protein. X is half-filled with a solution of 8% protein, while Y is half-filled with 2% protein. After 1 hour incubation, it is found that in X
Water level increases
Protein percentage increases
Water level decreases
Water level and protein percentage remain unchanged
Exposure to chemical X will hydrolysed the lysosomal membrane. Which of the following DOES NOT occur if X is injected into a cell?
The pH of cytosol decreases
Autodigestion
Digestion products decrease
Autophagy
During which stage of meiosis do chromatids separate completely?
Anaphase I
Anaphase II
Metaphase 1
Metaphase II
Which of the following assumptions BEST describe the Hardy-Weinberg Law?
Frequencies of alleles in the population change because of mutations
Equal chance of mating between genotypes
There must be exchange of alleles between the population
Not all genotypes contribute genes to the next generation
Which of the following is TRUE about Turner syndrome?
A person with only one chromosome 21.
A person with three chromosome 21.
A male with extra X chromosome
A female missing one X chromosome
How are plasmids inserted into bacterial cells?
By insertion
By transformation
By ligation
By duplication
