Hox gene are basically the controlling gene which controls the timing and growth of embryonic development with presence in every animal kingdom species.
Explanation:
The presence of Hox gene in every animal kingdom species is self explanatory to have a common link between them all, even including the humans.
The role of Hox gene is a controlling gene. It controls the time of embryonic development that is, when to start dividing and which way of division should carry on for how long. This let the deciding factor for the growth of the embryo, and comes the variation, and hence, evolutionary pattern can be sketch out. This is why the scientists feel its evidentiary value in all organisms sharing common ancestor.
Thermophiles (Archeans which live in extremely hot temperatures)
The effects<span> of </span>tobacco smoke<span> on the </span>respiratory system<span> include: irritation of the trachea (windpipe) and larynx (voice box) reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages.</span>
Answer:
Mitosis produces 2 daughter cells which are genetically identical to the parent cell. Each daughter cell is diploid (contains the normal number of chromosomes). This is the result of DNA replication and 1 cell division. ... Meiosis is used to produce gametes (sperm and egg cells), the cells of sexual reproduction.
Explanation:
D is the answer,hope this will help :)