A cotyledon is known as a significant constituent of an embryo which is present in the seed of a plant. It is present in only those plants which bear seeds. The flowering plants are also known as angiosperms are classified by the botanists on the basis of the number of cotyledons they have. Those species of plants which have a single cotyledon are termed as monocotyledonous (monocot) plants.
On the other hand, those which bear two embryonic leaves are called dicotyledonous (dicot) plants. The total number of cotyledons in the case of gymnosperms ranges from eight to twenty. The cotyledons of the dicots have an ability to carry out photosynthesis yet they are quite distinct from the true leaves.
How is an F′ factor different from an F factor?
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
In fruit flies, curved wings are recessive to straight wings,
What is an advantage and a disadvantage of this repair system?
Explain the type of speciation (allopatric, parapatric, or sympatric
The raw material for evolution is random mutation. Discuss whether or
With regard to the timing of conjugation, explain why the recipient
A woman who is heterozygous, Bb, has brown eyes;
A recessive allele in mice results in an unusally long neck.
Why is an antibody used in this experiment? From