
Figure 18.12 Which of the following statements about the male reproductive system is false?
a. The vas deferens carries sperm from the testes to the seminal vesicles.
b. The ejaculatory duct joins the urethra.
c. Both the prostate and the bulbourethral glands produce components of the semen.
d. The prostate gland is located in the testes.

Introduction:
The male reproductive system of the humans is a group of inter associated organs, which help in the formation of the gametes and their proper delivery out of the body. The male reproductive system also produces many hormones and other secretion important in reproduction and maintenance of the secondary sexual characteristics.
Answer to Problem 1ACQ
The correct answer is option (d).
Explanation of Solution
Explanation for the correct answer:
Option (d) prostate is located in testes. The prostate is a gland that is present between the bladder and the penis. It is a walnut-sized gland, which is situated just above the rectum. The urethra runs through the center of this gland. So, the prostate is located in testes is an incorrect answer. Hence, the correct answer is option (d).
Explanation for the incorrect answer:
Option (a) vas deferens carries the sperm to the seminal vesicles. The vas deferens carries the sperm from the testes to the seminal vesicles. From the seminal vesicles, the sperm is transferred to the ejaculatory duct. So, the vas deference carries the sperm to seminal vesicles is a correct statement. Hence, it is an incorrect answer.
Option (b) the ejaculatory duct joins the urethra. The pathway of the semen ejaculation and urine passage is the same. The ejaculatory duct joins the urethra, and share the same passage. Hence, it is an incorrect answer.
Option (c) both bulbourethral gland and prostate gland constitute the component of semen. The sperm is carried to the seminal vesicles and from there it is transferred to the ejaculatory duct. In the ejaculatory duct, the secretion of the prostate gland is added and down in the path, the secretion from the bulbourethral gland is added. So, the semen has the secretion of the bulbourethral gland and the prostate gland. Hence, it is an incorrect answer.
The prostate gland is not a part of testes. Hence, the option (d) is the correct answer.
Want to see more full solutions like this?
Chapter 18 Solutions
Concepts of Biology
Additional Science Textbook Solutions
Microbiology: An Introduction
Campbell Biology: Concepts & Connections (9th Edition)
Human Anatomy & Physiology (2nd Edition)
Campbell Biology (11th Edition)
Concepts of Genetics (12th Edition)
Campbell Essential Biology (7th Edition)
- Using quail and chicken embryos, what kind of experiment would you conduct to test if rib forming somites have their axial identity specified before segmentation? How do we know this phenotype is due to axial identity being specified before segmentation and not due to our experimental method?arrow_forward8. Aerobic respiration of a 5 mM solution of tripeptide that is composed of the following three amino acids; alanine, leucine and isoleucine. Alanine breaks down to pyruvate, leucine breaks down to Acetyl-CoA and isoleucine breaks down to succinyl-CoA. Alanine NADH FADH2 OP ATP SLP ATP Total ATP Leucine Isoleucine Totals Show your work using dimensional analysis here: 4arrow_forward9. Aerobic respiration of one lipid molecule. The lipid is composed of one glycerol molecule connected to two fatty acid tails. One fatty acid is 12 carbons long and the other fatty acid is 18 carbons long in the figure below. Use the information below to determine how much ATP will be produced from the glycerol part of the lipid. Then, in part B, determine how much ATP is produced from the 2 fatty acids of the lipid. Finally put the NADH and ATP yields together from the glycerol and fatty acids (part A and B) to determine your total number of ATP produced per lipid. Assume no other carbon source is available. fatty acids glycerol 18 carbons 12 carbons 0=arrow_forward
- If using animals in medical experiments could save human lives, is it ethical to do so? In your answer, apply at least one ethical theory in support of your position.arrow_forwardYou aim to test the hypothesis that the Tbx4 and Tbx5 genes inhibit each other's expression during limb development. With access to chicken embryos and viruses capable of overexpressing Tbx4 and Tbx5, describe an experiment to investigate whether these genes suppress each other's expression in the limb buds. What results would you expect if they do repress each other? What results would you expect if they do not repress each other?arrow_forwardYou decide to delete Fgf4 and Fgf8 specifically in the limb bud. Explain why you would not knock out these genes in the entire embryo instead.arrow_forward
- You implant an FGF10-coated bead into the anterior flank of a chicken embryo, directly below the level of the wing bud. What is the phenotype of the resulting ectopic limb? Briefly describe the expected expression domains of 1) Shh, 2) Tbx4, and 3) Tbx5 in the resulting ectopic limb bud.arrow_forwardDesign a grafting experiment to determine if limb mesoderm determines forelimb / hindlimb identity. Include the experiment, a control, and an interpretation in your answer.arrow_forwardThe Snapdragon is a popular garden flower that comes in a variety of colours, including red, yellow, and orange. The genotypes and associated phenotypes for some of these flowers are as follows: aabb: yellow AABB, AABb, AaBb, and AaBB: red AAbb and Aabb: orange aaBB: yellow aaBb: ? Based on this information, what would the phenotype of a Snapdragon with the genotype aaBb be and why? Question 21 options: orange because A is epistatic to B yellow because A is epistatic to B red because B is epistatic to A orange because B is epistatic to A red because A is epistatic to B yellow because B is epistatic to Aarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
- Essentials of Pharmacology for Health ProfessionsNursingISBN:9781305441620Author:WOODROWPublisher:Cengage


