Two of the risk factors for Down's syndrome include which of the following?

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exposure to high temperatures

increased age of female

infectious hepatitis

over exposure to sunlight

In order for the lac operon genes to be turned on and for transcription of the genes to take place, what must happen? The repressor protein binds to the DNA molecule, and RNA polymerase falls off.

Examine the reasons why astronomers send telescopes and probes into space

In an ocean, the parrotfish feed on marine plants, big fish feed on parrotfish, and sharks feed on the big fish. What are sharks in the food chain? producers primary consumers secondary consumers tertiary consumers decomposers NextReset

Possible role of tcf7l2 in the pathogenesis of type 2 diabetes mellitus

Which object in the Solar System is essentially stationary relative to all the other objects in the Solar System? A. the Earth B. the Sun C. the Moon D. an asteroid

How are adaptations related to the environment?

The vectors used to transmit a gene segment is a

Which of the following is FALSE regarding the DNA double helix? a. The two strands exhibit complementary base pairing. b. The four nitrogenous bases found in it are A, T, C and G. c. The two strands are parallel. d.

Li was experiencing fatigue, despite sleeping eight hours per night. He went to the doctor and was diagnosed with iron-deficiency anemia. The doctor recommended he eat iron-fortified breakfast cereals.

Describe the water that is most likely to float on the surface of the ocean.