Question

Among a species of butterflies, the color blue (B) is a dominant trait. Yellow color (b) is a recessive trait. If a pure blue butterfly (BB) mates with a pure yellow (bb), what will the offspring look like?
A)
They will all be blue.
B)
They will all be yellow.
C)
Half will be blue and half will be yellow.
D)
About 75% will be blue and 25% will be yellow.

Answer 1

Among a species of butterflies, the color blue (B) is a dominant trait. Yellow color (b) is a recessive trait. If a pure blue butterfly (BB) mates with a pure yellow (bb), what will the offspring look like?
A)
They will all be blue.
B)
They will all be yellow.
C)
Half will be blue and half will be yellow.
D)
About 75% will be blue and 25% will be yellow.

Answer 2

Matthew and Bradley got into an argument. Matthew was convinced that the above picture was RNA, and Bradley was positive that it was DNA.
Who is right and why?
A)
Both Matthew and Bradley were wrong as this is not DNA or RNA.
B)
There is not enough information in the picture to conclude who was right.
C)
Matthew was right because RNA is single-stranded while DNA is double-stranded.
D)
Bradley was right because DNA is single-stranded while RNA is double-stranded.

Answer 3

Stem cells may prove useful in the treatment of Type 1 diabetes because
A)
they form enzymes that remove excess glucose from the body.
B)
they help the body to breakdown glucose into a simpler form.
C)
they can be differentiated to form insulin-producing cells.
D)
they can be differentiated into cells that can be used to make a new liver.