Tag: zoology

Questions Related to zoology

Several copies of genes carrying the contrasting characters are mainly included in which of the following laws?

zoology inherited changes compatibility of blood groups blood group blood groups and compatibility advance

  1. Law of independent assortment

  2. Law of segregation

  3. Multiple allelism

  4. None of the above

Show answer
Correct Option: C
Explanation:
Alleles are alternative forms of a gene. They are responsible for differences in phenotypic expression of a given trait. When a gene exists in three or more allelic forms it is called multiple allele. 
For example, ABO blood group system in humans is controlled by three alleles  I$^A$, I$^B$, and  I$^O$
IA and IB are codominant and make type A and type B antigens, respectively. IO is the recessive allele and produces no antigen.The blood groups arising from the different possible genotypes is given below.
Genotype                         Blood Group
I$^A$ I$^A$                        A
I$^A$ I$^O$                       A
I$^B$ I$^B$                        B
I$^B$ I$^O$                       B
I$^A$ I$^B$                      AB
I$^O$ I$^O$                      O
So, the correct answer is 'Multiple allelism'

Multiple alleles are situated at 

zoology inherited changes compatibility of blood groups blood group blood groups and compatibility advance

  1. Homologous chromosme at same locus

  2. Homologous chromosome at different locus

  3. Non-homologous chromosome at different locus

  4. None of the above

Show answer
Correct Option: A
Explanation:

Alleles are alternative forms of a gene. They are responsible for differences in phenotypic expression of a given trait. When a gene exists in three or more allelic forms it is called multiple allele. Homologous chromosomes are chromosome pairs, one from each parent. They are similar in length, gene position and centromere location. Multiple alleles are situated in homologous chromosome at the same locus. Thus the correct answer is option A.

If both parents are albino, all the offspring shall be

zoology inherited changes compatibility of blood groups blood group blood groups and compatibility advance

  1. Albino

  2. Some albino, some normal

  3. Homozygous normal

  4. Heterozygous normal

Show answer
Correct Option: A
Explanation:

Albinism is a autosomal genetical recessive gene disorder. It occurs in homozygous recessive state. The gene for albinism is a. it does not produce the enzyme tyrosinase, but is normal Allele A is does. Thus only homozygous individuals (aa) is affected. When both parents are albinic, all the offsprings also albinic generally.

So, the correct option is ‘Albino’.

When the heterozygote in a population have a reproductive advantage, one can predict that _________________.

zoology inherited changes compatibility of blood groups blood group blood groups and compatibility advance

  1. They will produce only heterozygous offspring

  2. The individuals that are homozygous recessive will take over

  3. Both homozygous dominant and homozygous recessive individuals will continue to appear in future generations

  4. Homozygous dominant and homozygous recessive individuals will be completely eliminated

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Correct Option: A

Multiple gene inheritance takes into account ______________.

zoology inherited changes compatibility of blood groups blood group blood groups and compatibility advance

  1. Discontinuous traits

  2. Continuous traits

  3. Co-dominance

  4. Incomplete dominance

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Correct Option: A

Which statement is wrong:

zoology biology : an introduction characteristics of life living world and classification attributes of living organisms

  1. Both Ascospores and Basidiospores are sexual spores formed endogenously.

  2. Phenetic classification is based on observable characters of an organism.

  3. Monograph contains information on any one taxon.

  4. Herbarium is the storehouse of collected plant specimens that are dried, pressed and preserved on sheets.

Show answer
Correct Option: A

Choose the correct pair option:
(i) Growth by mass - Defining property.
(ii) Hominidae - Family of humans.
(iii) Potato and brinjal - belong to the same species.
(iv) The specialised gardens with collections of living plants - Indian Botanical Garden.
(v) Biological names - Seldom Latin.

zoology biology : an introduction characteristics of life living world and classification attributes of living organisms

  1. (i), (ii) and (v).

  2. (ii) and (iv).

  3. (i), (ii) and (iv).

  4. (ii), (iii) and (iv).

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Correct Option: B

Manuals contain information for:

zoology biology : an introduction characteristics of life living world and classification attributes of living organisms

  1. Habitat and distribution of animals in a given area.

  2. Habitat and distribution of plants found on earth.

  3. Identification of names of species found in an area.

  4. Habitat and distribution of some useful animals of a given area.

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Correct Option: C
Explanation:

Identification of names of species found in an area

Manuals are useful in providing information for identification of names of species found in an area while Manographs contain information on any one taxon.

Culture is the sum total of _________________.

zoology biology : an introduction characteristics of life living world and classification attributes of living organisms

  1. habits, values and customs

  2. fine arts, drawings, architecture

  3. traditions and conduct of life style of man

  4. All of the above

Show answer
Correct Option: D
Explanation:

Culture is the sum of total of the learned behavior of a group of people that are generally considered to be the tradition of that people and are transmitted from generation to generation. 


Therefore, it consists of all the three above mentioned options.

Living organisms contain only ________________.

zoology biology : an introduction characteristics of life living world and classification attributes of living organisms

  1. L-amino acids and L-sugars

  2. L-amino acids and D-sugars

  3. D-amino acids and D-sugars

  4. D0amino acids and L-sugars

Show answer
Correct Option: A