Reproductive Health — BIOLOGY STD 12 Science — Question

If the sequence of the coding strand in a transcription unit is written as follows:
5'-ATGCATGCATGCATGCATGCATGCATGC-3'
Write down the sequence of m-RNA

Fill in the blanks:
Fertilisation takes place in _____________.

Although AIDS is a fluid transmitted disease, it is considered as a STD. Give reason for it.

In which form/ forms did Urey-Miller supply energy in their experiment?

Write a difference between net primary productivity and gross productivity.

Fill in the blanks.

In aquatic ecosystems, the limiting factor for the productivity is _________.

Define the following terms and give one example for each:
Commensalism

High fever, loss of appetite, stomach pain and constipation are some of the symptoms seen in a patient. How would the doctor confirm that the patient is suffering from typhoid and not amoebiasis

In case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and which is diploid?

Write name of one hormone secreted by glandular structure of ruptured follicle cells.