Why Does The Sa Node Act As A Pacemaker Of The Heart?
SA node serves as the heart’s pacemaker as it is an auto excitable tissue. It has the ability to generate... View Article
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Name A Viral Infection That Affects The Liver.
The Hepatitis B virus causes Hepatitis B infection which affects the liver and can lead to acute and chronic disease... View Article
Mention The Role Of IUDs In The Phagocytosis Of Sperms.
Intrauterine devices increase the phagocytosis of sperms in the uterus. The released copper ions suppress the sperm motility and the... View Article
Mention A Few Activities Which Can Disturb The Activity Of The Pineal Gland.
Extended hours of work, artificial light, red sleep-time can disrupt the functioning and the activity of the pineal gland. Stay... View Article
Where Can Convergent Evolution Be Seen?
Marsupials and placental mammals in Australia have evolved to share several similar traits. Such an evolution can be called convergent... View Article
What Is The Role Of Relaxin At The Time Of Labour?
At the time of labour, relaxin which is secreted by the placenta and ovary causes the dilation of the cervix... View Article
What Is A Ramchandran Plot?
It is a way to energetically visualize permitted regions for the backbone dihedral angles Ψ against Φ amino acid residues... View Article
Name A Monoecious And Bisexual Plant.
Wheat is monoecious and bisexual. Stay tuned to BYJU’S to learn similar NEET Questions.
Name A Monoecious And Unisexual Plant.
Maize and castor are monoecious and unisexual. Stay tuned to BYJU’S to learn similar NEET Questions.
How Is Papaya Able To Prevent Both Autogamy And Geitonogamy?
Papaya is a dioecious plant wherein the female and male flowers are produced on two distinct plants. Consequently, it prevents... View Article
Where Can The Condition Of Epihydrophily Be Seen?
Vallisneria exhibits Epihydrophily which involves the transfer of pollen at the surface of the water. Stay tuned to BYJU’S to... View Article
What Is Epihydrophily?
Epihydrophily is the transfer of pollen at the water surface. The male flowers of Vallisneria after breakage float on the... View Article
What Is A Punnett Square?
The Punnett square is a graphical representation of the probable genotypes of an entity that arises from a specific breeding... View Article
Mention One Role Of The Sigma Factor In Transcription.
The sigma factor causes the RNA polymerase to associate with the correct sites on DNA in order to initiate transcription.... View Article
Why Do Eukaryotes Require Transcription Factors?
Eukaryotes need transcription factors to first associate with the promoter region and then aid the recruitment of the apt polymerase.... View Article
Mention Any 2 Features Of Genetic Codes.
Genetic codes are the sequence of nucleotides found in DNA and RNA determining the amino acid sequence of proteins. These... View Article
How Does The Megaspore Mother Cell Divide In Most Angiosperms?
The megaspore mother cell in most of the angiosperms divides by meiosis forming 4 haploid megaspores organized in a linear... View Article
Which Is The Most Common Type Of Embryo Sac Occurring In Flowering Plants?
The monosporic embryo sac also referred to as the polygonum type embryo sac is the most common type of embryo... View Article
What Triggers Rna Interference?
RNA interference (RNAi) is stimulated by double-stranded RNA in a range of organisms, even fungi, plants and animals. It includes... View Article
What Is Dicer In RNAi?
At the time of RNAi, long dsRNA is ‘diced’ or cut into small fragments approximately 21 nucleotides long by enzymes... View Article
