Testosterone is produced by the ________ and the adrenal cortex
Fill in the blank(s) with correct word
testes
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A catalyst
A) requires more reactants but makes the reaction rate faster. B) increases the amount of reactants produced but does not change the rate. C) changes the rate of the reaction but does not change the end amount of products. D) changes both the rate of a reaction and the amount of the product that will be obtained as the reaction is completed.
The technique known as ________ relies on the fact that although the PCR fragments are about the same ________, they differ in ________. The DNA denaturing rate on a gel then varies with the ________ content, DNA sequence, and chemical gradient. Hence, similar fragments can be separated and identified.
What will be an ideal response?
Match the letter of each example from childbirth to the appropriate component of a positive feedback loop.A. pituitary gland secretes oxytocin, which acts on the uterusB. uterine contractions increaseC. fetus is pushed against uterine openingD. receptors detect stretchE. brain receives and compares stretch informationEffector
What will be an ideal response?
When a reciprocal translocation occurs, part of one chromosome is exchanged with a part of another chromosome
For example, one half of Chromosome 3 may now be found fused to Chromosome 10, and part of Chromosome 10 is now found fused to Chromosome 3. In a balanced reciprocal translocation, an even exchange of material occurs such that no genetic information is extra or missing. Individuals can carry balanced reciprocal translocations and be quite healthy. Consider the case where a gamete containing a balanced reciprocal translocation of a single chromosome is used to fertilize a genetically normal egg. Explain why individuals carrying a single balanced reciprocal translocation might have problems with chromosome segregation during meiosis but not in mitosis.