Sudoriferous (sweat) glands are categorized as two distinct types. Which of the following are the two types of sweat glands?
mammary and ceruminous
eccrine and apocrine
holocrine and mammary
sebaceous and merocrine
The Correct Answer is B
A. mammary and ceruminous: Mammary and ceruminous glands are specialized glands that produce milk and earwax, respectively. They are not classified as the main types of sweat glands.
B. eccrine and apocrine: Eccrine glands are widely distributed and produce watery sweat for thermoregulation, while apocrine glands are found in specific areas like the axillae and groin and secrete thicker sweat associated with scent. These two categories constitute the primary types of sudoriferous glands.
C. holocrine and mammary: Holocrine glands, such as sebaceous glands, release their product via whole-cell rupture and are not sweat glands. Mammary glands are specialized exocrine glands, so this pairing does not represent the main sweat gland types.
D. sebaceous and merocrine: Sebaceous glands secrete sebum and are oil-producing, not sweat-producing. Merocrine is another term for eccrine secretion, but the pairing with sebaceous glands incorrectly categorizes sweat glands.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. TCG:DNA contains thymine (T) instead of uracil (U), and transcription involves RNA pairing, not direct DNA-tRNA pairing. TCG in DNA does not directly base-pair with tRNA during translation.
B. AUG:AUG is a codon on mRNA that codes for methionine and serves as the start codon. tRNA with an AGC anticodon would not pair with AUG.
C. UGA:UGA is a stop codon on mRNA. An AGC anticodon cannot base-pair with a stop codon, as stop codons do not correspond to tRNA anticodons.
D. UCG:The tRNA anticodon AGC is complementary to the mRNA codon UCG. Base pairing occurs via A-U and G-C hydrogen bonds, allowing proper amino acid incorporation during translation.
Correct Answer is D
Explanation
A. late prophase:During late prophase, chromosomes condense and the mitotic spindle forms, but cytokinesis has not yet begun as the cell is still preparing for chromosome alignment.
B. early anaphase:Early anaphase involves the separation of sister chromatids toward opposite poles. Cytokinesis does not start at this point because chromosome separation is still in progress.
C. early prophase:Early prophase is the initial stage of mitosis where chromatin condenses into visible chromosomes. Cytokinesis is not initiated at this stage.
D. late anaphase:Cytokinesis begins during late anaphase, when the cell starts forming a cleavage furrow as the chromosomes near the poles. This process continues into telophase, ultimately dividing the cytoplasm into two daughter cells.
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