1. DNA fingerprinting is also called DNA . 2. Who is the scientist credited with starting DNA fingerprinting? 3. of everyone’s DNA is the same. 4. What does “STR” stand for? 5. What are STRs? 6. The names of the three people in this video who have different STRs are ● ● ● 7. To cut the STRs we use restriction . 8. Then to the DNA (make more copies of the DNA), we use polymerase chain (PCR). 9. To use gel electrophoresis, you put each person’s DNA into in a gel. 10. Because DNA is negatively charged, it is pulled to the end. 11. For DNA profiling, scientists use (the number) different sections of DNA to compare. 12. Who committed the “murder?” 13. We know this because this person’s match the from DNA at the crime scene. 14. The FBI now uses (the number) different areas of the for STRs.

do you have a picture?

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up

i think its both a and b

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.