Skip to content

#animal models

4 public questions tagged with this topic.

Which one of the following methods is frequently used to create transgenic animals?

Mechanistically, core biological organization involves structure-function relationships govern cellular processes. This validates Nuclear micro-injection because it integrates fundamental principles, a pattern repeatedly demonstrated in general biology research. This mechanism is extensively documented and reinforced by experimental data across multiple model systems and textbook discussions.

Ref: Campbell et al., Biology, 11th Edition, Chapter 2, Chemical Basis of Life, discusses fundamental biological principles and molecular organization providing broad foundation for life sciences understanding.

Severe combined immunodeficiency mice and nude mice differ in which of the following cellular components?

In cell biology, cellular compartmentalization and cell cycle dictates that SNARE-mediated trafficking, Hayflick limit, P53 and cyclin regulation control proliferation. Therefore B lymphocytes is correct as it aligns with membrane trafficking and cell cycle control, supported by mechanistic studies and conserved across related systems.

Ref: Alberts et al., Molecular Biology of the Cell, 6th Edition, Chapter 10, Membrane Structure and Transport, discusses SNARE proteins, vesicle trafficking, ER, Golgi, endosome membranes and selective transport providing compartmentalization foundation.

Alcohol exposure during pregnancy causes defects similar to human FAS in:

Developmental toxicology testing for fetal alcohol spectrum relies on mammalian placental models recapitulating ethanol metabolism via alcohol dehydrogenase, generation of acetaldehyde, reactive oxygen species and pharmacokinetics comparable to human exposure. Mice exhibit craniofacial features resembling human fetal alcohol syndrome including midfacial hypoplasia, micrognathia, growth retardation and neurobehavioral deficits following gestational ethanol dosing during gastrulation or organogenesis. Genetic tractability allows investigation of L1CAM adhesion, Sonic hedgehog interaction. While

Ref: Gilbert, Developmental Biology, 12th ed., Chapter 20: Alcohol teratogenesis mouse FAS model.