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Biology: CUET Mock Test - 5 - CUET MCQ


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40 Questions MCQ Test CUET Mock Test Series - Biology: CUET Mock Test - 5

Biology: CUET Mock Test - 5 for CUET 2024 is part of CUET Mock Test Series preparation. The Biology: CUET Mock Test - 5 questions and answers have been prepared according to the CUET exam syllabus.The Biology: CUET Mock Test - 5 MCQs are made for CUET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Biology: CUET Mock Test - 5 below.
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Biology: CUET Mock Test - 5 - Question 1

Who is the author of the book “The Principle of population”?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 1

Thomas Malthus is the author of the book Principles of population. According to him, the population grows geometrically whereas food grows only arithmetically. Charles Darwin was inspired by this theory.

Biology: CUET Mock Test - 5 - Question 2

Which of the following does not belong to the Hardy Weinberg principle?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 2

Allele frequencies does not vary from species to species. In a population, the frequency always remains fixed or constant according to Hardy Weinberg principle. The alleles and total genes in any population remain constant and hence stable.

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Biology: CUET Mock Test - 5 - Question 3

The common name of Homo habilis was ______

Detailed Solution for Biology: CUET Mock Test - 5 - Question 3

Homo habilis was also known as tool maker or handy man. It was the first man who made tools of stones for hunting animals. They lived in caves.

Biology: CUET Mock Test - 5 - Question 4

Poliovirus affects which pathway during paralysis of muscles?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 4

During the paralytic stage, motor nerves are affected resulting in atrophy of muscles, generally of arms and legs but may affect those of diaphragm, larynx and pharynx. So, Motor Pathway is affected during the paralysis of muscles.

Biology: CUET Mock Test - 5 - Question 5

Which region of an antibody is also called a ‘Fragment of Crystallization’?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 5

Fc region of an antibody is also called as a Fragment of Crystallization. It is responsible for the effector function. It is also called a constant region. It determines the isotype of an immunoglobulin.

Biology: CUET Mock Test - 5 - Question 6

The two key concepts branching descent and natural selection belong to ______ theory of evolution.

Detailed Solution for Biology: CUET Mock Test - 5 - Question 6

The two key concepts of Darwin’s theory of evolution was branching descent and natural selection. Nature selects the fittest species. Adaptive ability is inherited and has a genetic basis. So, they were the two major concepts.

Biology: CUET Mock Test - 5 - Question 7

It is known that the total sum of all the frequencies of the allele is _____

Detailed Solution for Biology: CUET Mock Test - 5 - Question 7

According to Hardy Weinberg principle, the total sum of all the frequencies of the allele is one. It shows that the gene pool remains the same or constant, i.e. one. Hence, it can be also termed as genetic equilibrium.

Biology: CUET Mock Test - 5 - Question 8

The cranial capacity of Homo habilis was _____ c.c.

Detailed Solution for Biology: CUET Mock Test - 5 - Question 8

They had a cranial capacity of 650-800 c.c. They were the first human being like and had complete erect posture similar to them. They had the knowledge to create tools of stones to hunt.

Biology: CUET Mock Test - 5 - Question 9

In which of the following area the effect of Poliovirus is not fatal?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 9

Poliovirus generally affects the Motor Pathway of the neurons. It causes atrophy of muscles which affect the voluntary muscles of limbs and resulting in deformities. But, if the muscles of Diaphragm, Larynx and Pharynx are affected, it is always fatal.

Biology: CUET Mock Test - 5 - Question 10

What is the approximate weight of Heavy and Light chains respectively?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 10

Each antibody molecule has four peptide chains, two long chains called heavy or H chain each of molecular weight 50,000 Da and two short chains called light or L chains each of approximate molecular weight 25,000 Da.

Biology: CUET Mock Test - 5 - Question 11

Lamarck was a _______ naturalist.

Detailed Solution for Biology: CUET Mock Test - 5 - Question 11

Lamarck was a French naturalist born in 1744. He was famous for his book Philosophie Zoologique in 1809. He came up with the theory of inheritance of acquired characters.

Biology: CUET Mock Test - 5 - Question 12

Which of the following represents the Hardy Weinberg equation?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 12

The Hardy Weinberg equation is p2 + 2pq + q2 = 1. Here, p2 denotes the allele of AA and q2 denotes the allele aa. This shows that p, q, and A, a are related in multiplication. So, 2pq represent Aa.

Biology: CUET Mock Test - 5 - Question 13

When was Polio eradicated from India?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 13

On 27 March 2014, the World Health Organisation declared India a polio-free country. Polio eradication programme began internationally in 1988. It was initiated in India in 1995.

Biology: CUET Mock Test - 5 - Question 14

Which region of an antibody is also called as ‘Variable Region’?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 14

Fab region of an antibody is also called a variable region. The Fab portion is so called because it is the fragment of the molecule which is antigen binding or a paratope.

Biology: CUET Mock Test - 5 - Question 15

Use and disuse theory was given by _______ to prove biological evolution.

Detailed Solution for Biology: CUET Mock Test - 5 - Question 15

According to Lamarck, the evolution of life forms had occurred but driven by use and disuse of organs. It was among Lamarck’s basic concepts. Using an organ continuously increases its development whereas disuse of it results in its degeneration.

Biology: CUET Mock Test - 5 - Question 16

The notation p and q of the Hardy Weinberg equation represent ________ of a diploid organism.

Detailed Solution for Biology: CUET Mock Test - 5 - Question 16

Individual frequencies can be represented as p and q. But for a diploid organism, p and q explain the frequency of allele A and allele a. p2 represents AA whereas q2 represent aa.

Biology: CUET Mock Test - 5 - Question 17

Who was known as the direct ancestors of homo sapiens?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 17

Homo erectus were known as the direct ancestors of humans. It had many similarities to modern man. Their face, skull structure, and posture were the same.

Biology: CUET Mock Test - 5 - Question 18

Flavivirus group causes which of the following pair of diseases?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 18

Flavivirus group causes Dengue and Yellow fever. This virus spreads through ticks and mosquitoes. Aedes aegypti mosquito spreads dengue fever, while Aedes and Haemagogus mosquitoes act as vectors for yellow fever.

Biology: CUET Mock Test - 5 - Question 19

What is a megasporangium?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 19

An ovule is an integumented megasporangium found in spermatophytes which develops into a seed on fertilization. The cells within the megasporangium are diploid which will divide via meiosis to form 4 megaspores.

Biology: CUET Mock Test - 5 - Question 20

Lamarck used _______ as examples of use and disuse theory.

Detailed Solution for Biology: CUET Mock Test - 5 - Question 20

Giraffes were the main examples of Lamarck’s use and disuse theory. Giraffes continuously used their short necks to reach tall trees for leaves. So, this resulted in the elongation of their necks.

Biology: CUET Mock Test - 5 - Question 21

Where do the ovules grow?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 21

The ovules grow and mature on the parenchymatous cushion in the ovary, also known as the placenta. Placenta is the medium through which young ovules get nutrition. The ovules may appear singly or in a cluster.

Biology: CUET Mock Test - 5 - Question 22

Which of the following does not belong to Homo erectus?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 22

Homo erectus was classified into Java man, Peking man and Heidelberg man. Cromagnon man belongs to Homo sapiens and not Homo erectus. Homo erectus were found 1.5 million years ago during the Mid-Pleistocene.

Biology: CUET Mock Test - 5 - Question 23

Which of the following is not the symptom of Classic Dengue Fever?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 23

Fragile blood vessels are not the symptom of Classic Dengue Fever, instead it is a symptom of Dengue Haemorrhagic Fever(DHF). It is a fatal form of dengue fever which starts with fever, nausea, headache, abdominal pain, cold extremities with haemorrhagic spots, internal bleeding leading to blood in stools, urine and vomiting.

Biology: CUET Mock Test - 5 - Question 24

Which of the following antibodies constitute the largest proportion of the total antibodies present?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 24

IgG antibodies constitute 75% of the total antibodies present in the blood. It is present in the monomer form and has two paratopes. It also evokes the complementary system and Opsonisation.

Biology: CUET Mock Test - 5 - Question 25

Which of the following were not among the basic concepts of Lamarckism?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 25

Struggle for existence was a concept of Darwin and not Lamarck’s. It states that every species competes with the same and other species for food, shelter, etc. to survive. Whereas, the remaining options support Lamarck’s concept of inheritance of acquired characters.

Biology: CUET Mock Test - 5 - Question 26

How many factors affect the Hardy Weinberg principle?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 26

Hardy Weinberg stated that there are six factors affecting this principle. They are Gene migration or gene flow, genetic drift, mutation, genetic recombination, and natural selection. Each factor plays a major role in evolution.

Biology: CUET Mock Test - 5 - Question 27

Who among Homo erectus used fire for hunting, protection, and cooking?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 27

Homo erectus erectus, also known as Java man used fire for hunting, protection, and cooking. It had complete erect posture and lived in caves. It used tools of bones and stones.

Biology: CUET Mock Test - 5 - Question 28

Mass of parenchymatous cells on the body of the ovary is also called ______

Detailed Solution for Biology: CUET Mock Test - 5 - Question 28

The mass of parenchymatous cells are also known as the Nucellus. It maybe massive (crassinucellate ovule) or thin (tenuinucellate ovule). Its surrounded by one or more teguments.

Biology: CUET Mock Test - 5 - Question 29

Which of the following is the smallest antibody?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 29

IgG is the smallest of all the antibodies. Also, it is the only antibody that can cross the placenta and confer immunity to the foetus. It only has two paratopes.

Biology: CUET Mock Test - 5 - Question 30

Passage at one end of the ovary is called as _______

Detailed Solution for Biology: CUET Mock Test - 5 - Question 30

Passage or pore present at the end of the ovary is called a micropyle. It is a small opening through which water, air, nutrients, etc. go. This pore or passage is left by integuments.

Biology: CUET Mock Test - 5 - Question 31

Which of the following does not belong to factors affecting the Hardy Weinberg principle?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 31

There are six factors affecting this principle. Among the factors, the genetic drop is not included in them. They only include Gene migration or gene flow, genetic drift, mutation, genetic recombination, and natural selection.

Biology: CUET Mock Test - 5 - Question 32

Which is the correct statement among the following?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 32

Cranial capacity was 800-1000 c.c. Chin was present and the jaw was prognathous. It was also known as an erect ape-man because of complete erect posture.

Biology: CUET Mock Test - 5 - Question 33

What is the full form of SARS?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 33

Severe Acute Respiratory Syndrome is the full form of SARS. It is a viral disease caused by the Corona virus. Its symptoms include pain in muscles, Fever, Chills, Respiratory distress and shortness of breath.

Biology: CUET Mock Test - 5 - Question 34

Which of the following antibody is the first line of defence against inhaled and ingested pathogens?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 34

IgA antibody is the first line of defence against inhaled and indigested pathogens because it is present in cell secretions like milk, saliva, mucous etc. It is also found in Colostrum.

Biology: CUET Mock Test - 5 - Question 35

During biological evolution, the first living organisms were _______

Detailed Solution for Biology: CUET Mock Test - 5 - Question 35

Heterotrophs were first living organisms to evolve, as they originated among organic molecules and oxygen-free atmosphere. They were anaerobes capable of respiration in the absence of oxygen. They only depended on the existing molecule for their nutrition.

Biology: CUET Mock Test - 5 - Question 36

The process when some species migrate from the original to a new place, which in turn changes the allele frequency is called ______

Detailed Solution for Biology: CUET Mock Test - 5 - Question 36

Gene migration or gene flow occurs when some species migrate from original to a new place. This changes the allele frequency in the old as well as a new place. So, new genes or alleles are being added to the new population and removed from the old one.

Biology: CUET Mock Test - 5 - Question 37

Which of the following viruses cause Swine Flu?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 37

Swine Flu is caused by the H1N1 virus. It is a highly contagious disease. Its symptoms include Fever, Chills, Fatigue, diarrhoea, vomiting, shortness of breath and sore throat.

Biology: CUET Mock Test - 5 - Question 38

Which among the following are not included in the concept of inheritance of acquired characters?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 38

Melanism in peppered moth is an example of adaptive radiation, and has no relation with this concept of Lamarck. Whereas the remaining options are included in the concept of inheritance of acquired characters.

Biology: CUET Mock Test - 5 - Question 39

Gene drift occurs when gene migration occurs ______

Detailed Solution for Biology: CUET Mock Test - 5 - Question 39

Gene flow occurs when gene migration occurs many or multiple times. When this occurs by a chance, a process called gene drift occurs. It cannot occur spontaneously, slowly or due to a disaster.

Biology: CUET Mock Test - 5 - Question 40

What is the scientific name of Peking man?

Detailed Solution for Biology: CUET Mock Test - 5 - Question 40

The scientific name of Peking man is Homo erectus pekinensis. It was given by scientist Mayer. It also had another name called Sinanthropus erectus given by Davidson Black.

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