BMK2 Review

A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:

• the green population to increase and the yellow to decrease

• both populations should stay the same

• both populations will increase

• the green population to decrease and the yellow to increaseThis is a wrong answer

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation

Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

Change over time

• Natural Selection
• Selective Breeding
• Homeostasis
• Evolution

In DNA, Adenine pairs with ___________. 

• Guanine
• Cytosine
• Thymine
• Uracil

DNA has a _____________ structure. 

• double helix
• single strand
• ring 
• chain

The mRNA leaves the ________ to find the ribosome to make proteins.

• cell
• nucleotide
• nucleus

Choose the sequence of the mRNA strand that would be match up with to the following strand:

GTAGTCA

• UATUAGA

• ACGACTG

• CAUCAGU

• CATCAGT

The main function of tRNA is to...

• carry a message that, when translated, forms proteins
• form a portion of ribosomes
• string together complementary RNA and DNA strands
• bring amino acids from the cytoplasm to the ribosomes

What amino acid is represented by the codon UUA?

• Phenylalanine
• Tyrosine
• Leucine
• Stop codon