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Penetrance is the percentage of individuals of a given genotype that express the trait coded for by that genotype.   

In a monohybrid cross, what is the genotypic ratio of the F2 generation?   

ESSAY QUESTION #1   Using materials from the course, only, list and briefly explain the five characteristics of model organisms. Note: Only the five characteristics discussed in the course shall be considered for grading. (5pts)   NOTE: When writing your essay response, be sure to write in essay format. Points are assigned for the proper use of grammar, spelling, and punctuation. I further expect to see well-constructed sentences with no errors in mechanics. I am not looking for what Google or Chat GPT provides you as an answer to this question. Only responses derived from course materials shall be accepted. 

Place the following structures in the order of development: morula, blastocyst, zygote, and gastrula.   

SHORT ANSWER QUESTION #2   Using materials from the course, only, name the four macromolecules found in living things. (2pts)  

Referring to the list of statements below, choose the statement written as true.   

Oocytes are the functional unit of the ovary.   

Following DNA replication during the S phase of interphase, copies of chromosomes are called chromatids and are joined at ____.   

Genetic information found within the ____ is transcribed into mRNA.  

Spermiogenesis occurs in the seminiferous tubules.