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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 4 Quiz: Menstrual Cycle, Fertilization, Embryonic Development and Contraception

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  • Questions count: 12
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1.
A transition element whose +5 oxidation state compound (V2O5) is widely utilized as an industrial catalyst in the Contact Process for sulfuric acid manufacturing and as a colorant in ceramics is:
Manganese (25Mn)
Scandium (21Sc)
Vanadium (23V)
Cobalt (27Co)
2.
In a titration experiment, 20.0 mL of 0.15 M H2SO4 is completely neutralized by 30.0 mL of NaOH solution. The molar concentration of the NaOH solution is:
0.10 M
0.30 M
0.05 M
0.20 M
3.
The hormone that affects both glandular and non-glandular tissue in the adult female body is:
Oxytocin
Aldosterone hormone
Calcitonin hormone
Growth hormone
4.
The direct cause of myxedema in an adult is:
Excessive increase in growth hormone
Insulin deficiency
Hyperactivity of the parathyroid gland
Severe deficiency in thyroxine secretion in adulthood
5.
The decisive experiment for Hershey and Chase (Hershey & Chase) To prove that DNA is the genetic material of bacteriophages, I relied on:
Radioactive phosphorus numbering P-32 in DNA and radioactive sulfur numbering S-35 in the protein envelope
Isolation of bacterial plasmids
Radioactive nitrogen and carbon numbering
Use of deoxyribonuclease enzyme to analyze protein
6.
The enzyme used in the crucial experiment to verify the experiments of Avery and his colleagues, which completely analyzes DNA and does not affect protein or RNA, is:
Deoxyribonuclease enzyme
pepsin enzyme
Ribonuclease enzyme
DNA polymerase enzyme
7.
DNA polymerase always adds new nucleotides in a specific direction:
From party 3' to 5' only
From party 5' To party 3' For new growing bar only
randomly
In both directions together
8.
Which of the following organisms has its genetic material as a single molecule of RNA rather than DNA?
Human immunodeficiency virus (HIV), polio virus, influenza and coronavirus
Escherichia coli bacteria
Yeast
Bacteriophage T2
9.
In Griffith's bacterial transformation experiment, mice died when they were injected with:
A mixture of heat-killed S bacteria with live R bacteria
Heat-killed S bacteria alone
Sterile saline solution
Live R bacteria alone
10.
DNA hybridization depends on the ability of single strands from different sources to combine if:
Made in the same cell
Treatment with shortening enzyme
They contain complementary sequences of nitrogenous bases and are linked by hydrogen bonds
They are just the same height and weight
11.
In gene cloning technology, a ligase is used to:
Cut the plasmid
Linking the integrated sticky ends of a target gene to the sticky ends of a circular plasmid
mRNA transcription
Breaking down proteins
12.
Experiments using genes for resistance to insect pests in crop plants (such as the Bacillus thuringiensis gene) are an application to:
Propagation by hydroponics
Artificial parthenogenesis
Genetic engineering and development of genetically modified plants resistant to pests without chemical pesticides
Parthenogenetic fruiting
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