Tag: zoology

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Questions Related to zoology

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

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

  1. Law of independent assortment

  2. Law of segregation

  3. Multiple allelism

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
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 choice zoology inherited changes compatibility of blood groups blood group blood groups and compatibility advance

Multiple alleles are situated at 

  1. Homologous chromosme at same locus

  2. Homologous chromosome at different locus

  3. Non-homologous chromosome at different locus

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
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.

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

If both parents are albino, all the offspring shall be

  1. Albino

  2. Some albino, some normal

  3. Homozygous normal

  4. Heterozygous normal
Reveal answer Fill a bubble to check yourself
A Correct answer
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’.

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

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
Multiple choice zoology biology : an introduction characteristics of life living world and classification attributes of living organisms

Which statement is wrong:

  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.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Ascospores and Basidiospores are sexual spores, but they are formed exogenously (on the outside of the specialized structure like the ascus or basidium), not endogenously.

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

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.

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

  2. (ii) and (iv).

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

  4. (ii), (iii) and (iv).
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Growth by mass is a feature but not a defining property (as non-living things also grow by mass). Potato and brinjal are different species. Biological names are derived from Latin. Hominidae is the family of humans, and botanical gardens are collections of living plants.

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

Manuals contain information for:

  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.
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Culture is the sum total of _________________.

  1. habits, values and customs

  2. fine arts, drawings, architecture

  3. traditions and conduct of life style of man

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
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.