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SCORPION-xisa [38]
3 years ago
8

Cytochalasin b is a chemical that disrupts microfilament formation

Biology
1 answer:
Volgvan3 years ago
7 0
Cytochalasin B is a chemical that disrupts microfilament formation. How would this interfere with cell division? In animal cells, the cleavage furrow forms when a ring of microfilaments contracts, causing the parent cell to be pinched in two. I hope it helps
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Use the picture to summarize the difference between the daughter cells that result from mitosis and meiosis.
Ugo [173]

Answer: Mitosis results in two diploid cells that have the same genetic makeup. Meiosis results in four haploid cells that are all genetically different from each other.

3 0
3 years ago
Proteins that affect the structure of dna bound to histones without altering histone chemical structure are called:_______
slamgirl [31]

Proteins that affect the structure of dna bound to histones without altering histone chemical structure are called Non-histone protein.

The proteins that remain after the histones have been taken out are known as non-histone proteins. A large group of heterogeneous proteins referred to as non-histone proteins organise and compress the chromosome into higher order structures.
They play a crucial role in regulating processes such nuclear transport, steroid hormone activity, nucleosome remodelling, DNA replication, RNA synthesis and processing, and the transition between interphase and mitosis.
Scaffold proteins, DNA polymerase, Heterochromatin Protein 1, and Polycomb are examples of typical non-histone proteins. This classification area also includes a large number of other structural, regulatory, and motor proteins. Non-histone proteins can be acidic. Other than histones, many proteins have the ability to bind to DNA and change the shape of the chromatin by means of epigenetic processes.

To learn more about non-histone protein-
brainly.com/question/14922129
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4 0
2 years ago
Making ATP without using oxygen is called
Lilit [14]
Anaerobic means with out oxygen
8 0
3 years ago
Dual innervation by both the parasympathetic and sympathetic divisions of the ANS imparts what function to the organ
skad [1K]

Explanation:At each target effector, dual innervation determines activity. For example, the heart receives connections from both the sympathetic and parasympathetic divisions. One causes heart rate to increase, whereas the other causes heart rate to decrease.

6 0
2 years ago
Describe the effects of the increase in temperature over the past 100 years.
Bezzdna [24]

Global surface temperature has been measured since 1880 at a network of ground-based and ocean-based sites. Over the last century, the average surface temperature of the Earth has increased by about 1.0o F. The eleven warmest years this century have all occurred since 1980, with 1995 the warmest on record. The higher latitudes have warmed more than the equatorial regions.

Beginning in 1979, satellites have been used to measure the temperature of the atmosphere up to a height of 30,000 feet. The long-term surface record and the recent satellite observations differ, but that fact is not surprising: the two techniques measure the temperature of different parts of the Earth system (the surface, and various layers of the atmosphere). In addition to this, a variety of factors, such as the presence of airborne materials from the 1991 eruption of the volcano Mt. Pinatubo, affect each record in a different way. Satellite observations were initially interpreted as showing a slight cooling, but more recent analyses accounting for natural, short-term fluctuations imply warming, just as the ground-based measurements have indicated over a longer time period. As more data from the satellite record become available, and as the quality of measurements is improved, comparison of these two records should yield additional insights.

A warmer Earth speeds up the global water cycle: the exchange of water among the oceans, atmosphere, and land. Higher temperatures cause more evaporation, and soils will tend to dry out faster. Increased amounts of water in the atmosphere will mean more rain or snow overall. We may be seeing the first signs of changes in the water cycle. Since the beginning of the century, precipitation in the United States has increased by about 6 percent, while the frequency of intense precipitation events (heavy downpours of more than two inches per day) has increased by 20 percent. Such events can cause flooding, soil erosion, and even loss of life. In some midcontinent areas, increased evaporation has led to drought because the heavy rains fell elsewhere.

There is also evidence that ecosystems are reacting to warming. Between 1981 and 1991, the length of the growing season in the northern high latitudes (between 45oand 70o N) increased by a total of up to twelve days, as documented by satellite imagery. Greening in spring and summer occurred up to eight days earlier, and vegetation continued to photosynthesize an estimated four days longer.

Global mean sea level has risen 4 to 10 inches over the last 100 years, mainly because water expands when heated. The melting of glaciers, which has occurred worldwide over the last century, also contributes to the rise. Formerly frozen soils (permafrost) in the Alaskan and Siberian arctic have also begun to melt, damaging both ecosystems and infrastructure. Melting and tundra warming will also lead to decay of organic matter and the release of trapped carbon and methane, creating an additional source of greenhouse gases.


3 0
3 years ago
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