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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are ______.

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प्रश्न

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are ______.

विकल्प

  • males and females, respectively

  • females and males, respectively

  • all males

  • all females

MCQ
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उत्तर

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are males and females, respectively.

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अध्याय 5: Principle of Inheritance and Variation - MULTIPLE CHOICE QUESTIONS [पृष्ठ ३१]

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एनसीईआरटी एक्झांप्लर Biology Exemplar [English] Class 12
अध्याय 5 Principle of Inheritance and Variation
MULTIPLE CHOICE QUESTIONS | Q 13. | पृष्ठ ३१

वीडियो ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्न

Choose the correct options of the following question:

Study the given monohybrid cross:

A test cross for this Fj will be:


The A and B genes are 10 cm apart on a chromosome. If an AB/ab heterozygote is test crossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?


Genes G S L H are located on the same chromosome. The recombination percentage is between L and G is 15%, S and L is 50%, H and S are 20%. The correct order of genes is


A B B C C D E F G H I

From the above figure identify the type of mutation and explain it.


If you cross dominant genotype PV/PV male Drosophila with double recessive female and obtain F1 hybrid. Now you cross F1 male with double recessive female.

What is the possible genotype in the F2 generation?


Read the following statements regarding 'X and Y' chromosomes and select the correct option.

P - Due to presence of large amount of euchrornatin X chromosome is genetically more active.

Q - Due to presence of small amount of heterochromatin Y chromosome is genetically more active.


During cell division, spindle fibres get attached to the disc shaped structures present on the centromere are known as ______.


Identify the term that represents the degree of repetition of the primary basic number of chromosomes in a cell.


From the following identify the statements that are CORRECT with respect to homologous and non-homologous region of X and Y chromosomes.

i. Non-homologous region of X chromosome is longer and contains more genes than that of non-homologous region of Y chromosome.

ii. X-linked genes are present on nonhomologous region of X-chromosome.

iii. Y-linked genes are present on homologous region of Y-chromosome.

iv. Crossing over occurs only between homologous regions of X and Y chromosomes.


A gene pair hides the effect of another. The phenomenon is ______.


Extra nuclear chromosomes occur in ______.


Two or more independent genes present on different chromosomes which determine nearly same phenotype are called ______.


How many types of gametes would be produced if the genotype of a parent is AaBB?


Who postulated the 'Chromosomal theory of inheritance'?


Discuss in detail the contributions of Morgan and Sturvant in the area of genetics.


Which of the following is sex chromosomal disorder?


According to the Chromosomal Theory of Inheritance, what is the source of one chromosome in each homologous pair of diploid organisms?


Despite differing in size and morphology, what equal contribution do male and female gametes make to offspring according to the Chromosomal Theory?


In what year did Walter Sutton publish the formal paper "The Chromosomes in Heredity" that linked Mendel's laws to chromosome behaviour?


According to the Chromosomal Theory of Inheritance, chromosomes serve which fundamental role in heredity?


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