What is different about synthesis of lagging strand compared to synthesis of the leading strand? A) synthesis of leading strand does not occur in 5* to 3* direction. B) Synthesis of lagging strand does not use DNA polymerase C) Synthesis of lagging strand does not use base pairing D) Synthesis of the leading strand does not involve RNA primers and Okazaki fragments

Answers

Answer 1

Answer: The difference in synthesis of lagging strand compared to synthesis of the leading strand is D) Synthesis of the leading strand does not involve RNA primers and Okazaki fragments. DNA polymerase adds nucleotides at the 3' end toward the 5' end in the direction 3' to 5'. The free end of the lagging strand is 5' so DNA polymerase cannot start from that end. The replication of the lagging strands is discontinuous and it involves RNA primers and Okazaki fragments. Synthesis of the leading strand is under control of DNA polymerase.

Answer 2

Answer:

d) synthesis of the leading strand does not involve RNA primers and Okazaki fragments

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What would the climate be like without the greenhouse effect? Back to normal with no threat of global warming
Too cold for many living organisms
Mostly temperate near the equator and extremely cold at the poles
Extremely dry with no moisture in the air

Answers

The correct answer is option B

The temperature could have been too cold for some of the organisms without greenhouse effect.

The average temperature of the earth could have been much lower than what is today.

It is the green house effect that the temperature is optimum for the survival of all the organism otherwise only that organism could have survived who can live at lower temperatures.

it would be to cold cuz

In What types of environments would you find protists

Answers

water enviroments like fishpools, ponds, your toilet...

1 2 3 4 5 6 7 8 9 10 Which process occurs when bacteria converts nitrogen gas to a usable form? a. Decomposition b. Condensation c. Fixation d. Transpiration

Answers

The process in which bacteria convert nitrogen gas into a usable form is **c. Fixation.** Nitrogen fixation is a vital step in the nitrogen cycle, where atmospheric nitrogen gas (N2) is converted into ammonia (NH3) or related compounds that plants can use for growth.

What are the "chemical messengers" that coordinate and direct specific activities of the body?

Answers

The correct answer is hormones.
Hormones are signaling molecules which are produced by glands and transported by the circulatory system to the target organs. The functions of the hormone are very diverse, they regulate physiology and behavior. Hormones have different chemical structures, eicosanoids, steroids, and amino acid/protein derivatives. The hormones can be the part of the endocrine signaling system (transported via blood). or produced by cells that affect the same cell (autocrine or intracrine signaling) or nearby cells (paracrine signaling).

Which of the following statements is FALSE regarding Oomycota?a. they belong to the group of water molds
c. they were responsible of the Great Potato Famine in Ireland
b. they take the form of sporangia
d. they have hyphae

Answers

The answer is (c.) They take the form of sporangia.

The Oomycota or Oomycetes is also known as water molds. In 1840, this type of genus ravaged some parts of Europe especially in Ireland. It is called the Irish Potato Famine. They are rarely to have septa or hyphae but if they do they appear at the bases of sporangia. They only appear on sporangia not takes its form.

Toxic waste spills are a direct source of water pollution.
a. True
b. False

Answers

There are twotypes of sources of water pollution; the direct sources and indirect sources. Directsources include effluent streams from factories, refineries, was treatment plantsand others. Whereas for indirect sources, includes contaminants that enter the watersupply from soil or groundwater systems and from the atmosphere via rain. Most ofthese sources derive from human activities. Toxic waste spills are by-productsfrom the industrial plants or factories. It is a direct source of waterpollution. The answer is true.

Toxic waste spills are a direct source of water pollution.

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