From a human developmental standpoint, what is the significance of Hox genes?

What will be an ideal response?


Hox genes are highly conserved among all organisms with bilateral symmetry. The arrangement and expression pattern of Hox genes establish anterior-posterior development in mammals. Some limb malformations in humans are caused by mutations in Hox genes.

Biology & Microbiology

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The phenotype in homozygous dominant individuals affected with an autosomal genetic disorder is often more severe than the ____________________ phenotype

Fill in the blank(s) with correct word

Biology & Microbiology

If a person were to stay at high altitudes for a long period of time, his or her hematocrit would increase in order to compensate for the decrease in the amount of oxygen in the air he or she is breathing

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following processes involves behaviors that are acquired by learning and can be modified and passed on from one generation to the next?

A) Prebiotic evolution B) Cultural evolution C) Natural selection D) Pre-adaptation E) Environmental selection

Biology & Microbiology

Seventeen patients in ten hospitals had cutaneous infections caused by Rhizopus. In all seventeen patients, Elastoplast bandages were placed over sterile gauze pads to cover wounds. Fourteen of the patients had surgical wounds, two had venous line insertion sites, and one had a bite wound. Lesions present when the bandages were removed ranged from vesiculopustular eruptions to ulcerations and

skin necrosis requiring debridement. Fungi are more likely than bacteria to contaminate bandages because they A) are aerobic. B) can tolerate low-moisture conditions. C) prefer a neutral environment (pH 7). D) have a fermentative metabolism. E) cannot tolerate high osmotic pressure.

Biology & Microbiology