The presence of ____ in urine indicates a pregnancy

a. estrogen
b. progesterone
c. human chorionic gonadotropin
d. follicle-stimulating hormone
e. luteinizing hormone


C

Biology & Microbiology

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Which of the following are primarily responsible for cytokinesis in plant cells but not in animal cells?

A) kinetochores B) Golgi-derived vesicles C) actin and myosin D) centrioles and centromeres

Biology & Microbiology

Plasmodial slime molds

A) are photoautotrophic. B) are marine decomposers. C) contain many nuclei in one mass of cytoplasm. D) are primitive fungi.

Biology & Microbiology

At an autosomal gene locus in humans, the allele for brown eyes is dominant over the allele for blue eyes. At another gene locus, located on the X chromosome, a recessive allele produces colorblindness while the dominant allele produces normal color vision. A heterozygous brown-eyed woman who is a carrier of colorblindness has a child with a blue-eyed man who is not colorblind. An ultrasound test shows that the child is a girl. What is the probability that she will be colorblind? (Enter the probability as a percent. Enter the number only without the percent sign. For example, enter 100% as 100 and enter 12.5% as 12.5)  

What will be an ideal response? Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain?   Gather Content · What do you already know about X-linked and autosomal inheritance?   Consider Possibilities · What other information is related to the question? Which information is most useful?   Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer?   Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

To facilitate the regulation of membrane fluidity, E. coli has the enzyme

A) bacteriorhodopsin. B) desaturase. C) fatty acid convertase. D) gangliosidase. E) unsaturase.

Biology & Microbiology