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Biology & Geology

Chapter 1 - Support and Movement in Living Organisms

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Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Chapter 7 - Geology, Earth Sciences and Ecology

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Quiz

Lesson 2 Quiz: Recombinant DNA, Gene Cloning, PCR and Genetic Engineering

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  • Questions count: 16
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1.
While the students ________ in the art workshop, the tour guide arrived.
were working
are working
work
worked
2.
The n-th term of an arithmetic sequence with first term a and common difference d is given by:
T_n = a + (n - 1) * d
T_n = a + n * d
T_n = a * rn − 1
T_n = 1/2 n (2a + d)
3.
In the arithmetic sequence (3, 7, 11, 15, ...), the common difference d and the 20th term (T_20) are respectively:
d = 4 and T_20 = 83
d = 5 and T_20 = 98
d = 4 and T_20 = 79
d = 3 and T_20 = 60
4.
The sum to infinity of the geometric series 12 + 6 + 3 + 1.5 + ... equals:
24
36
18
Infinity
5.
The slope of the tangent line to the curve y = x2 - 6 x + 5 at the point (4, -3) equals:
m = 8
m = -2
m = 2
m = -3
6.
The slope of the tangent to the curve y = (x + 1)/(x - 1) at x = 2 is:
2
3
-2
-1
7.
Charles's Law establishes that at constant pressure, the volume of a given mass of gas is directly proportional to its:
Absolute temperature in Kelvin (T_K = t_C + 273.15)
Square of the absolute temperature
Celsius temperature only
Atmospheric density
8.
An air bubble released from the bottom of a deep lake expands in volume as it rises towards the surface because:
The bubble absorbs water molecules into its gas phase
Atmospheric pressure increases at the surface
The water temperature at the surface is near absolute zero
The hydrostatic pressure decreases as depth decreases, allowing the trapped air to expand according to Boyle's law
9.
The ion directly responsible for the explosion of synaptic vesicles and the release of acetylcholine in the neuromuscular synapse cleft is:
Potassium ion K+
Chloride ion Cl−
Sodium ion Na+
Calcium ion Ca2+
10.
The cells that secrete the hormones oxytocin and ADH and store them in the posterior lobe of the pituitary gland are:
Frontal lobe glandular cells
Glial cells
Pineal gland cells
Apocrine neurons in the hypothalamus (hypothalamus)
11.
The surface immune receptor characteristic of T helper cells (Th) that enables them to recognize the antigen complex with the MHC protein is:
CD4 receptor
CD3 receptor
CD8 receptor
BCR receptor
12.
The phenomenon of natural parthenogenesis in honey bees results in:
Fertile queens (2N)
Diploid males
Female workers only
Bees are always male, and their somatic cells are haploid (1N) resulting from an unfertilized egg that grows mitotically.
13.
The decomposition of the corpus luteum in the ovary of a non-pregnant woman at the end of the menstrual cycle results in:
Placenta formation
Secretion of huge amounts of LH
A sharp drop in the concentration of the hormone progesterone leads to the breakdown of the uterine lining, the rupture of its capillaries, and the occurrence of menstruation
Continued growth of the uterine lining
14.
The fetal membrane that directly surrounds the fetus and secretes a fluid that protects it from shock and dehydration and facilitates its movement is:
Amniotic membrane (Chorion)
Plasma membrane
Vitelline membrane
Amnion
15.
The amount of DNA in a human female secondary oocyte compared to a resting somatic skin cell (before replication begins) is:
Half the quantity
Quarter
Equal (contains 46 DNA molecules in the form of 23 diploid chromosomes)
Weakness
16.
In gene cloning technology, a ligase is used to:
Breaking down proteins
mRNA transcription
Cut the plasmid
Linking the integrated sticky ends of a target gene to the sticky ends of a circular plasmid
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