During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which statement is most likely to be helpful in correcting this student's misconception? a. Spontaneous mutations cannot result in the appearance of new genes. b. Disuse of an organ may lead to its eventual disappearance. c. Only favorable adaptations have survival value. d. Characteristics acquired during an organism's life are generally not passed on through genes.
Added by Devin P.
Step 1
- The student believes that physical changes acquired during an organism's lifetime (such as a giraffe stretching its neck) can be inherited by its offspring. Show more…
Show all steps
Your feedback will help us improve your experience
Md.Daniyal Arshad and 74 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Which of the following situations best shows Darwin's theory of natural selection as a mechanism for evolution? A. The long neck of a giraffe is the result of its ancestor continually reaching for higher branches. B. The ancestor of the snake had its legs bitten off by a predator, thus all of its offspring had no legs. C. A long, thin-beaked bird can reach nectar in a flower that other birds cannot, so it survives and breeds offspring that also have long, thin beaks. D. During his lifetime, a man works out and gets increasingly large muscles. Thus, all of his offspring will be born with strong muscles as well.
Adi S.
Which item below is NOT always true of evolution by natural selection? a) It is a process of change that accounts for the diversity of life on our planet b) It requires variation in a phenotypic trait c) It requires heritability of phenotypic variation of a trait d) It proceeds from less complex forms to more complex forms e) It requires differential survival and ultimately reproduction associated with possession of a trait
Joanna Q.
Which of the following statements is correct regarding mutations? a. Mutations are not important in evolution. b. Mutations provide the source for genetic variation, but other evolutionary factors are more important in determining allele frequencies in a population. c. Mutations occur at such a high rate that they promote major changes in the gene pool from one generation to the next. d. Mutations are of greater importance in smaller populations than in larger ones. e. Mutations are of greater importance in larger populations than in smaller ones.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD