Question:

Which of the following is correct match

Updated On: May 5, 2024

Down Syndrome = 21st Chromosome
Sickel cell anaemia = X – Chromosome
Haemophilia = Y – Chromosome
Parkinson Disease = X & Y Chromosome

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The Correct Option is A

Solution and Explanation

The correct option is (A) : Down Syndrome = 21st Chromosome

Trisomy 21, sometimes referred to as Down syndrome (DS or DNS), is a genetic disease brought on by the presence of all or a portion of a third copy of chromosome 21. Physical growth delays, mild to severe intellectual handicaps, and distinctive facial traits are frequently connected with it. A young adult with Down syndrome has an average IQ of 50, which is comparable to an 8- or 9-year-old child's mental capacity, but this can vary greatly. Genetically, the afflicted person's parents are often unaffected. The likelihood rises from less than 0.1% for women under 20 to 3% for those over 45. There is no known behavioral activity or environmental element that alters the probability of the extra chromosome occurring; it is thought to happen randomly.

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Questions Asked in NEET exam

Match List I with List II :

List - I		List – II
A.	Residual Volume	i.	Maximum volume of air that can be breathed in after forced expiration
B.	Vital Capacity	ii.	Volume of air inspired or expired during normal respiration
C.	Expiratory Capacity	iii.	Volume of air remaining in lungs after forcible expiration
D.	Tidal Volume	iv.	Total volume of air expired after normal inspiration

Choose the correct answer from the options given below :

NEET (UG) - 2024
The respiratory system

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Match List I with List II:

List I		List II
A	Robert May	I	Species-Area relationship
B	Alexander von Humboldt	II	Long term ecosystem experiment using out door plots
C	Paul Ehrlich	III	Global species diversity at about 7 million
D	David Tilman	IV	Rivet popper hypothesis

Choose the correct answer from the options given below:

NEET (UG) - 2024
Species diversity

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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector \(\vec{P}\) of magnitude, 4 × 10^-6 C m, is ± 9 × 10³ V.
(Take \(\frac{1}{4\pi\epsilon_0}=9\times10^9\) SI units)
Reason R : \(V=±\frac{2P}{4\pi \epsilon_0r^2}\), where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :
- NEET (UG) - 2024
- Magnetic Field
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Concepts Used:

Structural Organisation in Animals

Structural organization in animals refers to the different levels of organization within their body, from the smallest unit of life to the entire organism.

At the cellular level, animals are composed of various types of cells that perform specific functions. These cells are organized into tissues, which are groups of similar cells that work together to perform a specific function. Different tissues then combine to form organs, such as the heart, lungs, and liver, which have specific functions within the body.

Multiple organs that work together towards a common goal make up an organ system, such as the respiratory or digestive system. Finally, all of the organ systems work together to form the entire organism.

The organization of an animal's body is critical to its survival and adaptation to its environment. Each level of organization is complex and requires a high degree of coordination and communication among cells, tissues, organs, and organ systems. The study of structural organization is important in understanding how animals function and how they adapt to their environment.