Definition in the Spelling Recitation

Recitation 11: Time delays

Causes of Spelling Weaknesses in Students with Visual Impairment and Teaching Strategies for Spelling Improvement

Background: Spelling is characterized as a basic skill for the children’s writing literacy. A wide range of factors may contribute to the formation and/ or intensification of problems related to teaching writing competencies, so that spellings come with a serious challenge called “invented spelling”. It is also a major concern for teachers and parents of children with visual impairments. Theref...

6.047 Recitation 8 Notes

6.047 Recitation 2 Notes

Why align sequences? Sequence alignments can reveal many things about the functional, structural or evolutionary significance of regions of DNA, RNA or protein. Examples: • The degree of similarity between regions of amino acids can tell us how well that region is conserved, which can provide clues about the structural or functional significance of that region. • The DNA sequence alignment of m...

7.013 Recitation 10

of Lectures 15 & 16: Library: A genomic library is a population of host bacteria, each of which carries a DNA molecule that was inserted into a cloning vector, such that the collection of cloned DNA molecules represents the entire genome of the source organism. The DNA molecules of an organism of interest are isolated, partially digested by an endonuclease restriction enzyme and ligated into ve...