(D) In honeybees,the sex determination is haplodiploid. Queens and workers are diploid $(2n)$,while drones are haploid $(n)$. Since drones are already

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The drones are produced parthenogenetically

(D) In honeybees,the sex determination is haplodiploid. Queens and workers are diploid $(2n)$,while drones are haploid $(n)$. Since drones are already haploid,they cannot undergo meiosis (reduction division) to produce sperm. Instead,they produce sperm through mitosis. This occurs because drones develop from unfertilized eggs through a process called parthenogenesis.

Class 12 Biology Principles of Inheritance and Variation Sex determination

Medium

In the drones of honeybee,there is no reduction in chromosome number during spermatogenesis. This indicates that

A
Drones are diploid
B
The drones are produced due to loss of one set of chromosomes from the fertilized egg
C
The drones are brought up on an inferior diet
D
The drones are produced parthenogenetically

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Principles of Inheritance and Variation

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Sex determination

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In the drones of honeybee,there is no reduction in chromosome number during spermatogenesis. This indicates that

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Statement $1$: Mother should not be blamed for the birth of the girls in the family.Statement $2$: Father is not responsible for the sex of the child.

In male grasshoppers and butterflies,there are two pairs of autosomes and .....

$A$: Non-allosomic genic determination of sex is found in bacteria.$R$: Sex is dependent on some environmental factors in prokaryotes.

Usually,the recessive character is expressed only when present in a double recessive condition. However,a single recessive gene can express itself in human beings when the gene is present on

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Statement $1$: Mother should not be blamed for the birth of the girls in the family.
Statement $2$: Father is not responsible for the sex of the child.

$A$: Non-allosomic genic determination of sex is found in bacteria.
$R$: Sex is dependent on some environmental factors in prokaryotes.