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WGU Introduction-to-Biology Exam Syllabus Topics:

WGU Introduction to Biology (KBC1, C190) Sample Questions:

Question 1

In a multigeneration family study,8% of malesandfar fewer femalesshow a trait (e.g., red hair). What is the most likely cause?

A. Environmental influence
B. Sex-linkedinheritance
C. Non-somatic inheritance
D. Autosomal inheritance

Question 2

What is the correctorderof the major events inDNA replication?

A. Unwinding the DNA # joining the two DNA strands # synthesis of a complementary strand
B. Joining the two DNA strands # synthesis of a complementary strand # unwinding the DNA
C. Unwinding the DNA # synthesis of a complementary strand # joining the two DNA strands
D. Synthesis of a complementary strand # unwinding the DNA # joining the two DNA strands

Question 3

What is the name of the structure thatjoins two sister chromatidstogether?

A. Centromere
B. Chromosome
C. Histone
D. Nucleus

Question 4

Which organisms arefour-limbed, produceshelled eggs, andlack feathers?

A. Sharks and rays
B. Rodents and rabbits
C. Crocodilians
D. Amphibians

Question 5

The humanMN blood groupis determined by two codominant alleles (MandN). In one family,alloffspring are MN. What are themost probable genotypesof the parents?

A. MM and MN
B. MN and MN
C. MM and NN
D. NN and MN

Solutions: