Entries by Daphne Hanson

Uses of biotechnology and genetic engineering

Discuss the use of biotechnology and genetic engineering for medical, environmental, legal, and pharmaceutical uses. What are the pros and cons to our society? Why is genetic engineering such a controversial ethical issue? How would you assess the importance of the Ethical Legal Social Implication (ELSI) Program’s impact on the privacy and confidentiality of genetic […]

The stages of mitosis

Identify the events that characterize each stage of mitosis. Drag the appropriate items to their respective bins. Reset Help Chromosomes are clearly double Daughter chromosomes arrive at the Daughter chromosomes migrate to structures. poles. Centromeres split. Cytokinesis commences. opposite poles. Centrioles reach the opposite poles. Chromosomes coil up and condense. Centrioles divide and move apart. […]

Genetic disorders and abnormalities

Genomics has led to many innovations for medical, environmental, legal, and pharmaceutical uses. Developments by the human genome project have led to blood tests that detect genetic disorders and abnormalities in your gene sequence. Technologies in genetic modification have allowed entire species of plants and crops from going extinct, such as bananas in Southeast Asia […]

The correlated evolution

Correlated evolution refers to two or more characters evolving together due to genetic constraints, ontogeny, and selection. Correlated evolution among characters often can have a meaningful impact on the trajectory of phenotypic evolution. Can you identify an example of correlated evolution in the article?

Mouse camouflage evolvement

How would  mouse camouflage evolve in one habitat if the environmental background varies between dark and light between summer and winter seasons, but the predation pressure remains continuously high? What kind of adaptations might this entail?

The phenotypic variation

Mutations with a stronger impact on the phenotypic variation of domestic animals occur typically in non-coding regions of the genome. Could you come up with an explanation for this pattern?

The recessive mutations

A scientist identified two recessive mutations in zebrafish: one that causes round fins (r) and another that causes short fins (f). She crossed two fish whose genotype she is unsure about but believes are Rrff x rrFf and got the following offspring: Wild type Short fins – 212 73 Round and Round fins short fins […]

The genetic code

Why is the genetic code said to be redundant? OtRNA molecules use an anti-codon to ensure that the correct amino acid is incorporated into the growing polypeptide chain Gene sequences can be found on either strand of the DNA Transcription of a mRNA sequence occurs through the reverse complementation of the template strand Multiple codons […]