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Biology
Which cytoskeletal component is primarily composed of tubulin?
A
Microtubules
B
Microtubules
C
Intermediate filaments
D
Collagen fibers
Correct Answer
A
Biology
Golgi apparatus, protein processing, cell biology, biology quiz
A
Ribosome
B
Nucleolus
C
Peroxisome
D
Centriole
Correct Answer
C
Biology
Which organelle modifies, sorts, and packages proteins for transport?
A
Golgi apparatus
B
Nucleus
C
Mitochondrion
D
Peroxisome
Correct Answer
A
Biology
Which organelle is primarily responsible for intracellular digestion?
A
Ribosome
B
Lysosome
C
Golgi apparatus
D
Centriole
Correct Answer
B
Biology
Human ABO blood groups are an example of:
A
Complete dominance only
B
Multiple alleles and codominance
C
Incomplete dominance only
D
Polygenic inheritance only
Correct Answer
B
Biology
Which inheritance pattern occurs when both alleles are fully expressed in a heterozygote?
A
Incomplete dominance
B
Codominance
C
Complete dominance
D
Polygenic inheritance
Correct Answer
B
Biology
Which type of inheritance produces an intermediate phenotype in heterozygotes?
A
Complete dominance
B
Incomplete dominance
C
Recessive inheritance
D
Sex-linked inheritance
Correct Answer
B
Biology
In a monohybrid cross between two heterozygous individuals, the expected phenotypic ratio under complete dominance is:
A
1:1
B
2:1
C
3:1
D
9:3:3:1
Correct Answer
C
Biology
Which genotype represents a heterozygous individual?
A
AA
B
aa
C
Aa
D
AABB
Correct Answer
C
Biology
Which condition results from an extra copy of chromosome 21?
A
Turner syndrome
B
Klinefelter syndrome
C
Down syndrome
D
Edwards syndrome
Correct Answer
C