Advertisements
Advertisements
प्रश्न
A male honeybee has 16 chromosomes whereas its female has 32 chromosomes. Give one reason.
Advertisements
उत्तर १
Male honey bees are born from unfertilised eggs, whereas female honey bees are born from fertilised eggs. Because the unfertilised egg carries half the number of chromosomes as compared to the fertilised egg, male honey bees have half the number of chromosomes as compared to female honey bees.
उत्तर २
A male honeybee has 16 chromosomes because it is haploid, developing from unfertilized eggs by parthenogenesis. A female honeybee has 32 chromosomes because it is diploid, developing from fertilized eggs and thus having two sets of chromosomes. This is the haplodiploid mechanism of sex determination in honeybees.
संबंधित प्रश्न
Sketch and label the structure of chromosome.
State the difference between meiocyte and gamete with respect to chromosome number.
Choose the correct options of the following question:
Study the given monohybrid cross:
A test cross for this Fj will be:
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
Changing the codon AGC to AGA represents
When two different genes came from the same parent they tend to remain together.
Write the observed phenotypic ratio.
Telocentric chromosome differs from acrocentric chromosome in that ____________.
Identify the term that represents the degree of repetition of the primary basic number of chromosomes in a cell.
A plant having the genotype AABbCC will produce ______ kinds of gametes.
A gene pair hides the effect of another. The phenomenon is ______.
Extranuclear inheritance is a consequence of presence of genes in ______.
Which three scientists independently rediscovered Mendel’s work?
How many types of gametes would be produced if the genotype of a parent is AaBB?
What do you mean by locus?
Which of the following phase follows S and G2 phases of interphase?
Genes located on same locus but having different expressions are:
Which of the following sentences are correct?
1. The offspring exhibit only parental combinations due to incomplete linkage
2. The linked genes exhibit some crossing over in complete linkage
3. The separation of two linked genes are possible in incomplete linkage
4. Crossing over is absent in complete linkage
Which of the following is sex chromosomal disorder?
