Which of the following is correct match
- Down Syndrome = 21st Chromosome
- Sickel cell anaemia = X – Chromosome
- Haemophilia = Y – Chromosome
- Parkinson Disease = X & Y Chromosome
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.
Top Questions on Kingdom Animalia
- The unique mammalian characteristics are:
- NEET (UG) - 2023
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A. Presence of a mid-dorsal, solid and double nerve cord.
B. Presence of closed circulatory system.
C. Presence of paired pharyngeal gill slits.
D. Presence of dorsal heart
E. Triploblastic pseudocoelomate animals.
Choose the correct answer from the options given below:- NEET (UG) - 2023
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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): All vertebrates are chordates but all chordates are not vertebrates
Reason (R): Notochord is replaced by the vertebral column in the adult vertebrates.
In the light of the above statements, choose the most appropriate answer from the options given below:- NEET (UG) - 2023
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- Which of the following is not a connective tissue?
- NEET (UG) - 2023
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Questions Asked in NEET exam
- In a uniform magnetic field of \(0.049 T\), a magnetic needle performs \(20\) complete oscillations in \(5\) seconds as shown. The moment of inertia of the needle is \(9.8 \times 10 kg m^2\). If the magnitude of magnetic moment of the needle is \(x \times 10^{-5} Am^2\); then the value of '\(x\)' is
- NEET (UG) - 2024
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- In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m-2)yr-1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
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- Spindle fibers attach to kinetochores of chromosomes during
- NEET (UG) - 2024
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- In which of the following processes entropy increases?
A. A liquid evaporates to vapour.
B. Temperature of a crystalline solid lowered from 130 K to 0 K.
C. 2NaHCO3(s) → Na2CO3(s)+CO2(g)+H2O(g)
D. Cl2(g) → 2Cl(g)
Choose the correct answer from the options given below:- NEET (UG) - 2024
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- Match List I with List II:
List I List II A Two or more alternative forms of a gene I Back cross B Cross of F1 progeny with homozygous recessive parent II Ploidy C Cross of F progeny with any of the parents III Allele D Number of chromosome sets in plant IV Test cross
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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.