AP BIOLOGY

EVOLUTION

EVOLUTION OF A POPULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following would NOT be controlled by Hox genes during the development of a vertebrate embryo?
A
the formation of ribs
B
the gender of the embryo
C
the length of the neck
D
the number of limbs
Explanation: 

Detailed explanation-1: -Hox genes are members of the homeotic transcription factor family that play a key role in controlling the body plan along the cranio-caudal axis (also referred to as anterior–posterior), and specify segment identity of tissues within the embryo.

Detailed explanation-2: -Abstract. Hox genes are critical regulators of embryonic development in bilaterian animals. They exhibit a unique mode of transcriptional regulation where the position of the genes along the chromosome corresponds to the time and place of their expression during development.

Detailed explanation-3: -Hox genes are the master regulators of embryonic development for all animals, including humans, flies and worms. They decide what body parts go where. Not surprisingly, if something goes wrong with these genes, the results can be disastrous.

Detailed explanation-4: -The thing that is false in regards to hawks genes is that they our genes that control how other genes will be expressed.

There is 1 question to complete.