Given below are two statements :
In the light of the above statements, choose the most appropriate answer from the options given below :
Both Statement I and Statement II are correct
Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect
Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are correct.
Statement I: Phenylketonuria (PKU) is an example of Pleiotropy. Pleiotropy refers to a single gene influencing multiple phenotypic traits. In the case of PKU, a mutation in the gene responsible for producing the enzyme phenylalanine hydroxylase (PAH) leads to various phenotypic effects beyond the inability to metabolize phenylalanine.
Statement II: Affected individuals lack an enzyme that converts phenylalanine into tyrosine. This statement accurately describes the underlying cause of PKU. Due to the absence or dysfunction of phenylalanine hydroxylase, individuals with PKU cannot convert phenylalanine into tyrosine, leading to an accumulation of phenylalanine in the body.
Therefore, both Statement I and Statement II are correct.
The sequence of nitrogenous bases in a segment of a coding strand of DNA is
5' – AATGCTAGGCAC – 3'. Choose the option that shows the correct sequence of nitrogenous bases in the mRNA transcribed by the DNA.
Rearrange the parts to form a coherent sentence:
A) when it is no longer fun.
B) stop doing something
C) if you're not growing
D) or learning from it
A consumer experiences the following total utility from consuming a certain good:
If the price per unit is ₹4, at what quantity does the consumer stop purchasing under the equilibrium condition where M U m = 5?
The Darsanams of the Gosangi
Over the costumes, Gosangi wears various objects made up of leather, shells, metal and threads as ornaments. Traditionally, the prominent among them is known as Darsanam-s, which literally means vision or suggesting that which is visible. There are altogether seven Darsanams, which can be neither considered as costumes nor ornaments. But, for an outsider, they may look like ornaments. The first Darsanam that Gosangi wears,cover chest and the back. This is traditionally identified as Rommu Darsanam or Sanku Darsanam. The second one is tied around the neck and called as Kanta Darsanam. The third and fourth ones are tied around the arms of left and right hands. The fifth and sixth ones are tied to the left and right wrists. (For these specific names are mentioned by the performers). The seventh one is known as Siro Darsanam, and it is tied around the already tied hair (koppu). The performers also know all these Dasanam except the Rommu Darsanam and Dasthavejulu (records).
Percussive Musical Instruments of India
India is very rich in the number and variety of musical instruments. From time immemorial, musical instruments have been connected with various Gods and goddesses according to mythol ogy. Musical Instruments have been classified into Thata, Avanadha, Ghana and Sushira. We came across this classification first in Natyashastra. Thata variety, is an instrument with strings and played by plucking or bowing. The instruments like Veena, Sitar, violin, Sarangi etc. come under this category. The Avandha variety are instruments with skin-covered heads, and are played by beating on both sides or one side. Mridangam, Pakhawaj, Tabla etc. come under this category. Ghana vadyas are those made with metal content. Manjira, Ghatom etc. are some of the examples of Ghana Vadya. Sushira Vadya are those instruments with holes and make the sound by blowing air through the holes. Flute, Nagaswaram, Saxophone, Clarinet are some of the examples.
A Mutation is a change in the sequence of our DNA base pairs caused by numerous environmental stimuli such as UV light or mistakes during DNA replication. Germline mutations take place in the eggs and sperm and can be passed onto offspring, whereas somatic mutations take place in body cells and are not passed on.
There are three types of mutations, which are as follows:
It refers to any change in DNA sequence that has no effect on the amino acid sequence in a protein or the functions that a protein performs. There is no phenotypic indication that a mutation has occurred.
When there is a change in the sequence of base pairs due to a point mutation, that results in a stop codon. This leads to a protein that is either shortened or non-functional.
A missense mutation occurs when a point mutation causes a change in the codon, which then codes for another amino acid.
When DNA copies incorrectly, the majority of mutations occur. Evolution occurs as a result of all of these mutations. DNA makes a copy of itself during cell division. When a copy of DNA isn't flawless, it's called a mutation since it differs somewhat from the original DNA.
When certain chemicals or radiations are used to break down DNA, it causes the DNA to break down. The thymine dimers are broken by UV radiation, resulting in altered DNA.