Question
Give the term/ reason:
Sperm cannot reach ovum without seminal plasma.

Answer

Seminal plasma is a liquid medium which helps the sperm to move and nourishes it.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

How are Mendelian inheritance, polygenic inheritance and pleiotropy different from each other?
Complete the given table.
Name of the organism Product/ Enzyme/ Bioactive male cule
Aspergillus niger (i)
(ii) Ethanol
(iii) Cyclosporin-A
(iv) Acetic acid
Monascus purpureus (v)
Streptococcus (vi)
In the medium where E. coli was growing, lactose was added, which induced the lac operon. Then, why does lac operon shut down some time after addition of lactose in the medium?
Give reasons why:
Most zygotes in angiosperms divide only after certain amount of endosperm is formed.
Describe biological evolution from paleontological and embryological evidences.
Study the illustration given and answer the questions that follow:

Identify ‘a’.

  1. In humans, males are heterogametic and females are homogametic. Explain. Are there any examples where males are homogametic and females heterogametic?
  2. Also describe as to, who determines the sex of an unborn child? Mention whether temperature has a role in sex determination.
List any two major causes other than anthropogenic causes of the loss of biodiversity.
What is called nucleosome? Explain the packaging of DNA coil. Draw a labelled diagram of a nucleosome.
A group of students visited a botanical garden, where they saw fungus growing on roots of higher plants only. They were confused seeing it. Then, their teacher told them that it is an interspecific interaction in which both species can be benefitted.
  1. Write the name of this particular association.
  2. How both are benefitted from each other?
  3. State use of this interaction to a farmer.
  4. What values are shown by students?