In poultry farming, the term 'broilers' refers to birds raised for:
A. Feathers
B. Egg production
C. Ornamental purposes
D. Meat production
Answer: Option D
Solution (By JKSSB Mock Tests)
Broilers are chickens bred and raised specifically for meat, reaching market weight in 6-8 weeks. Layers are hens raised for egg production. Broilers require high-protein diet and management to maximize growth. Poultry farming is an important sector for protein supply. Some breeds like Rhode Island Red are dual-purpose. Cobb and Ross are popular broiler strains.
Explanation:
Alveoli are thin-walled air sacs where O₂ and CO₂ exchange occurs. The voice box is the larynx; diaphragm is skeletal muscle; pulmonary veins carry oxygenated blood.
Explanation:
Gene therapy involves correcting a genetic defect by introducing a functional gene into a patient's cells. The first clinical gene therapy was given in 1990 to a 4-year-old girl with Adenosine Deaminase (ADA) deficiency, a severe combined immunodeficiency (SCID) caused by a mutation in the ADA gene. The functional ADA gene was introduced into her lymphocytes using a retroviral vector.
Explanation:
The anticodon is a triplet of nucleotides on the tRNA molecule that base-pairs with the complementary codon on mRNA during translation, ensuring correct amino acid incorporation. Codons are on mRNA, promoters are DNA sequences for transcription initiation, exons are coding regions in eukaryotic genes.
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