Sex-influenced genes cause males to be males and females to be females

Indicate whether the statement is true or false


FALSE

Biology & Microbiology

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In the frog genus, when certain species attempts to mate with other species, embryo development is halted at various stages including zygotic segmentation, blastula formation, gastrulation, or in the final phases of embryo development

The stage where the developing frog arrests depends on the species involved in the cross. This is an example of A. hybrid breakdown. B. hybrid sterility. C. hybrid inviability D. sexual isolation.

Biology & Microbiology

The concept that most morphological changes in species occur gradually over long periods of time is known as the

____.

a. phyletic gradualism hypothesis b. principle of convergent evolution c. punctuated equilibrium hypothesis d. unified theory of evolution e. concept of adaptive radiation

Biology & Microbiology

A decrease in cortisol triggers secretion of CRH (corticotropin-releasing hormone) by the hypothalamus which then stimulates secretion of ____ by the anterior pituitary

a. cortisol b. adrenocorticotropic hormone c. adrenal cortex-stimulating hormone d. cortisol-stimulating hormone e. aldosterone

Biology & Microbiology

Alleles are alternative versions of chromosomes

Indicate whether the statement is true or false

Biology & Microbiology