Question

The following statements are either accurate as written or contain some errors. You need to rewrite each as an accurate statement. Be sure that you do not change the material the sentence is about. Highlight or underline any changes that you make to the statements

1) SINES, LINES and SNPs are three common types of repetitive sequences.

2) Yeast have one origin of replication on their circular chromosome that creates two replication forks.

3) Write your own correct statement about a mutation type.

Answer 1

1:- SINES, LINES and SNPs are three common type of repetitive sequences.

· Short interspersed elements (SINEs) are retrotransposons that have accumulated to very high copy numbers in many mammalian genomes. For example, at least 10% of the human genome is composed of a single family of SINEs, known as alus.

· Active long interspersed elements (LINEs) are autonomous retrotransposons that likely provide the enzymic activities that are required by SINEs for their propagation. The high frequency of bimorphic SINE insertions in the dog genome may therefore be indicative of highly active LINEs

· SNP genotyping is the measurement of genetic variations of single nucleotide polymorphisms (SNPs) between members of a species. It is a form of genotyping, which is the measurement of more general genetic variation. SNPs are one of the most common types of genetic variation.  SNPs can also provide a genetic fingerprint for use in identity testing.