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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
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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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संबंधित प्रश्न
If centromere is situated in the middle of the chromosome, it is called ________.
(a) Metacentric
(b) Acrocentric
(c) Submetacentric
(d) Telocentric
Who had proposed the chromosomal theory of inheritance?
Explain the types of chromosomes on the basis of position of centromere.
Distinguish between X and Y chromosomes.
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
Write the salient features of the Sutton and Boveri concept.
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.
Chromosomal theory of inheritance was put forth by ______
Two or more independent genes present on different chromosomes which determine nearly same phenotype are called ______.
Chromosomal theory of inheritance was given by ______.
How many types of gametes would be produced if the genotype of a parent is AaBB?
Which of the following statements indicates parallelism in genes and chromosomes?
- They occur in pairs.
- They segregate during gamete formation.
- They show linkage.
- Independent pairs segregate independently.
A couple has two daughters. What is the probability that the third child will also be a female?
What are minisatellites?
What do you mean by locus?
Discuss in detail the contributions of Morgan and Sturvant in the area of genetics.
Experimental verification of the chromosomal theory of inheritance was done by ______.
A haemophilic man marries a carrier woman and they have a daughter. What is the probability of their daughter being haemophilic?
In a karyotype analysis, X and Y chromosomes represent sex chromosomes.
Name the scientist who discovered the X chromosome.
