Genetic Engineering and DNA Concepts

DNA is the blueprint for life, encoding instructions in a double-helix structure. It forms chromosomes, which contain genes essential for protein synthesis. Despite 0.1% variation, human DNA is unique, serving as a fingerprint. DNA similarities across species suggest a common ancestor. Genetic engineering allows DNA manipulation, but unknown functions and GMO concerns remain. DNA's complexity continues to intrigue scientists.

What is the complete set of instructions encoded in an organism's DNA called?

• Genome

• Protein

• Chromosome

• Gene

How is genetic information stored in DNA?

• In a single strand

• In a triple-helix structure

• Using four types of molecules in pairs

• In a random sequence

What is the role of proteins as described in the transcript?

• They determine the number of chromosomes

• They act as a backup for DNA strands

• They perform various essential functions for life

• They store genetic information

What is a key feature of the DNA structure that helps protect genetic information?

• Its single-strand formation

• Its random organization

• Its double-helix structure

• Its ability to change rapidly

What percentage of DNA differs between individual humans?

• 1%

• 0.1%

• 10%

• 5%

Which species shares about 96% of its DNA with humans?

• Bacteria

• Chimpanzees

• Fish

• Plants

What evidence supports the idea that life came from a single ancestor?

• Different numbers of chromosomes in species

• Shared genetic sequences across all living things

• The presence of junk DNA

• Unique DNA sequences in each species

What is one of the main concerns about genetic engineering?

• It is too expensive

• It may cause unforeseen problems

• It is too slow

• It is not effective

What is a potential benefit of genetic engineering mentioned in the transcript?

• Eliminating all diseases

• Increasing human lifespan

• Producing life-saving hormones

• Creating new species

What is the term used for DNA sequences that do not code for proteins?

• Core DNA

• Functional DNA

• Junk DNA

• Active DNA