GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Something to open a lock
|
|
|
Something that tells us which object something is
|
|
|
A method of identifying a unknown organism
|
|
|
The key to life
|
Detailed explanation-1: -Sequence inspection can be used to locate genes because genes are not random series of nucleotides but instead have distinctive features. These features determine whether a sequence is a gene or not, and so by definition are not possessed by non-coding DNA.
Detailed explanation-2: -DNA sequencing is the gold standard for microorganism identification. The 16S ribosomal RNA (rRNA) gene is the most common sequencing target for bacteria and is 1542 base pairs (bp) in length.
Detailed explanation-3: -Geneticists use maps to describe the location of a particular gene on a chromosome. One type of map uses the cytogenetic location to describe a gene’s position. The cytogenetic location is based on a distinctive pattern of bands created when chromosomes are stained with certain chemicals.