Linked Genes, Gel Electrophoresis & Chi Square

If results of recombination do NOT follow Mendel's Law of Independent Assortment, genes are likely to be - - - 

• shuffled during meiosis
• linked
• inherited
• on separate chromosomes

Tags

NGSS.HS-LS3-2

Which genes are most likely linked?

• genes 1 & 2
• genes 2 & 3
• genes 3 & 4
• genes 1 & 4

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Genes that are located in the same chromosome?

• Chromosome Map

• Genetic Recombination

• Linked Genes

• Fruit Fly

Linked genes are

• located on different chromosomes of the same size and shape
• located on the same chromosome
• rarely inherited together

Crossing-over of parts of chromosomes:

• has no effect on genetic linkage
• usually decreases the number of genetic combinations in a population
• can increase the number of genetic combinations in a population

Tags

NGSS.HS-LS3-2

According to _______, genes that are closer together on a chromosome, have a higher chance of being inherited together.  

• Gene Linkage
• Polygenic
• Pleiotropy
• Epistasis

What is the purpose of gel electrophoresis?

• helps cut DNA
• count the genes in DNA
• separates DNA based on size
• allows for an exact replicated organism

Why do the fragments of DNA in gel electrophoresis travel away from the negative electrode?

• DNA is negatively charged so attracted to the positive end of the unit
• DNA is positively charged to attracted to the negative end of the unit
• the agarose gel in negatively charged
• the agarose gel is positively charged

What applications can gel electrophoresis be used for?

• Parental Testing
• Criminal Investigations
• Sequence Endangered Species DNA
• All of the above

Which DNA fragment bands move faster and farther in a gel electrophoresis? 

• there is no way to tell 
• the largest ones
• the smallest ones
• none of these