The process by which white blood cells squeeze through capillary walls to reach infection sites is: MCQ with Answer and Explanation

Explanation:
Aneuploidy is a chromosomal abnormality resulting from nondisjunction, the failure of homologous chromosomes or sister chromatids to separate properly during cell division. Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21 (trisomy 21). Turner syndrome is a sex chromosome anomaly in females characterized by the karyotype 45, X0, not 47, XXY (which is Klinefelter syndrome). Thus, statements 1 and 2 are correct.

Explanation:
Acromegaly results from overproduction of growth hormone after the epiphyseal plates have fused, causing enlargement of hands, feet, jaw, and facial features. Gigantism occurs when excess GH is produced during childhood, leading to tall stature. Dwarfism is GH deficiency, cretinism is congenital hypothyroidism.

Explanation:
Plant cell walls are primarily cellulose. Fungal walls contain chitin, bacterial peptidoglycan, animal cells lack a cell wall.