Which of the following conditions represents a case of codominant genes
A gene expresses itself, suppressing the phenotypic effect of its alleles.
Genes that are similar in phenotypic effect when present separately, but when together interact to produce a different trait.
Alleles, both of which interact to produce a trait, which may or may not resemble either of the parental types.
Alleles, each of which produces an independent effect in a heterozygous condition.
D.
Alleles, each of which produces an independent effect in a heterozygous condition.
Codominance is the phenomenon when the two alleles of a gene neither show dominant recessive relationship nor show intermediate condition, but both of them express themselves independently in heterozygous condition. This has been reported in roan coat colour of cattle (i.e., patches of2 different colours on the skin).
Assertion: Chimpanzee is the closest relative of the present day humans.
Reason: The banding pattern in some autosomes of man and chimpanzee is remarkably similar.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: The honeybee queen copulates only once in her life time.
Reason: The honeybee queen can lay fertilised as well as unfertilised eggs.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: XX-XY type of sex determination mechanism is an example of female heterogamety and is found in Drosophila.
Reason: Male heterogamety is seen in moths where males produce two different types of gamete.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Refer to the given figure and choose the organism not related to the condition shown here.
Microsporum
Trichophyton
W. malayi
Epidermophyton
Assertion: Analogous organs are a result of divergent evolution.
Reason: Eye of octopus and of mammals depict divergent evolution.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: Neurospora is commonly called water mould.
Reason: It belongs to basidiomycetes fungi.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: Flavr-Savr tomato was the first transgenic commercial crop that entered the market.
Reason: Roundup variety of soybean was prepared through breeding.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: Restriction enzymes cut the strand of DNA to produce sticky ends.
Reason: Stickiness of the ends facilitates the action of the enzyme DNA polymerase.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Assertion: Somatic hybridisation is a process where protoplasts of two desired plants can be fused to develop improved plants.
Reason: Cross breeding can also induce variability
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
