Biology Answers

Explain why the genetic code would not work if nucleotide bases were arranged in pairs rather than in triplets, to make the coding units.

The genetic code consists of 3-letter words. What does this mean?

There are 2 main classes of mutations : (i) Point mutations, (ii) Insertion/deletion mutations.

In groups of 3, research and state how each of these mutations can alter the DNA sequence.

What type of diseases can result from DNA copying going wrong?

A DNA molecule is 20% thymine (T). What % of each of the other types of base would it contain?

The mRNA strand produced in the nucleus is complementary to the template strand of the DNA and a copy of the coding strand. Explain this:

Temperature, water amounts, soil type, and other organisms control the biodiversity of a habitat. Which term includes the items that control biodiversity?

why some kids in a family might have albinism and others might not?

The answer should be 8-10 sentences and must include the following words:

DNA

gene

protein

melanin

mutation

chromosome

meiosis

crossing over

dominant

recessive

heterozygous

homozygous recessive

Connect the terminologies DISEASE FORMATION and NUCLEIC ACIDS.

Explain clearly how stomatal density occurs in plants in vitro (in culture vessels) compared to those grown in vivo. Why does this happen?