Asked by Madison Petitto on Apr 28, 2024
Verified
When the sheep Dolly was successfully cloned, it was produced by growing an in vitro fertilized egg where the normal egg nucleus had been removed and replaced by a nucleus from an adult. Since this nucleus was from an older mature animal, which of the following would be a reasonable expectation?
A) The nucleus from the older mature animal would have additional Barr bodies.
B) The nucleus from the older mature animal would contain DNA with many mutations.
C) The nucleus from the older mature animal would contain chromosomes with shorter telomeres.
D) The nucleus from the older mature animal would have chromosomes with longer telomeres.
E) The nucleus from the older mature animal would have a higher concentration of mRNA.
Telomeres
The protective caps at the ends of chromosomes that prevent the loss of genetic information during cell division.
Barr Bodies
Inactive X chromosomes present in the nuclei of female cells, visible as dense spots, and used in genetic and gender testing.
mRNA
Messenger RNA, a type of RNA that carries genetic information from DNA to the ribosome, where it specifies the amino acid sequence of the protein products of gene expression.
- Grasp the concept of telomeres and their role in cellular aging and cancer.
Verified Answer
Learning Objectives
- Grasp the concept of telomeres and their role in cellular aging and cancer.
Related questions
DNA Segments at the Ends of Chromosomes That Shorten Every ...
Briefly Discuss Why the Degradation of Telomeres Result in Cellular ...
Short, Noncoding, Guanine-Rich DNA Sequences Found at the Ends of ...
Cancer Cells Characteristically Express High Levels of Telomerase
____, the Ends of Eukaryotic Chromosomes, Shorten with Every Cell ...