A litter of cloned rats was born from a single surrogate mother rat. Despite being genetically identical, each of the baby rats looked very different from one another. Explain in detail why this might have occurred.
Added by Sean O.
Step 1
Even though the cloned rats are genetically identical, differences in gene expression can lead to variations in physical appearance. Factors such as environmental influences, diet, stress levels, and other external factors can all play a role in determining how Show more…
Show all steps
Your feedback will help us improve your experience
Christina Sorrentino and 62 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
Rat pups born from good mothers were cross fostered with bad mothers, and pups born from bad mothers were given to good mothers. The stress responses of the cross fostered pups were more similar to the foster mother than the biological mother. What does that data demonstrate?
Christina S.
A male rat that is phenotypically normal shows reproductive anomalies when compared with normal male rats, as shown in the table above. Propose a genetic explanation of these unusual results, and indicate how your idea could be tested.
Identical (monozygotic) twins have similar, but not identical, fingerprints. Given that all the alleles of all the genes of identical twins are the same, explain how this outcome is possible.
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