#Question id: 3276
#SCPH06 I Botany
Which of these conditions are always true of populations evolving due to natural selection?
Condition 1: The population must vary in traits that are heritable.
Condition 2: Some heritable traits must increase reproductive success.
Condition 3: Individuals pass on most traits that they acquire during their lifetime.
#Question id: 6983
#SCPH28 | Zoology
In vertebrates, the heart forms from:
#Question id: 11552
#SCPH28 | Zoology
Which of the following are properties of steroid
hormones?
I) Steroid hormones are lipid soluble and easily cross
the phospholipid bilayer.
II) Steroid hormones usually exert their effects on target cells through membrane receptor proteins.
III) Steroid hormones act on cells close to where they
were produced.
IV) Steroid hormones regulate gene transcription by binding to intracellular receptor proteins.
#Question id: 1294
#SCPH05 I Biotechnology
Dystroglycan is a large glycoprotein that binds to dystrophin in muscle cells. It is also present in other cells and can also bind to:
a. laminin.
b. the virus that causes Lassa fever.
c. the bacterium that causes leprosy.
#Question id: 6986
#SCPH01 Biochemistry
The use of segments as a developmental strategy in vertebrates is evident in: