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Oliga [24]
3 years ago
5

A grandfather clock needs to have a period of one second. What length of pendulum should be hung for

Biology
1 answer:
NISA [10]3 years ago
4 0

Answer:

Explanation:

hello not sure .but just started learn physics but think so 1 metre (39 inches) long. please mark me brailiest for answer or trying . thx

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Gametes are _____. <br> reproductive organs <br> reproductive cells <br> reproductive tissues
Rina8888 [55]
Hey there! Gametes are: reproductive cells

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7 0
2 years ago
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Depending on the type of reproduction, offspring can be genetically identical, a clone of their parent, or genetically distinct.
Vlad [161]

• Offspring are genetically identical to parent-asexual reproduction

Fungi reproduce asexually on different ways such as fragmentation, budding, or producing spores(asexual spores, which are produced by one parentand thus, genetically identical to that parent).

• Offspring genetically distinct-sexual reproduction

Sexual reproduction introduces genetic In fungi, there are two ways(two mating types):both mating types are present in the same mycelium (homothallic) or mycelia require two different mycelia (heterothallic).


6 0
3 years ago
The interaction between DNA and histone proteins (forming nucleosomes) plays a key role in the regulation of gene expression in
ladessa [460]

Answer:

A. The chromatin near cis-regulatory sequences will be more closed and there will be less transcription.

Explanation:

In the presence of histones, the cis-regulatory sequences of DNA like promoter, enhancers etc. are not exposed. The function of the histone acetyltransferases (HATS) is to cause chromosome decondensation i.e. removal of histones from the DNA so that transcription of the DNA could occur. Histone acetyltransferases (HATS) cause acetylation of lysine amino acid of the histone proteins. Acetyl group is negatively charged so the acetylation of histone proteins leads to the removal of their positive charge which ultimately leads to the decrease in the interaction between N terminal of histones and negatively charged phosphate group of the DNA molecule. As soon as histones are removed from the DNA where cis-regulatory sequences are located, the DNA becomes accessible for transcription.

But here a drug has been added which blocks the activity of histone acetyltransferases (HATS) in cancer cells. So it is quite evident that in these cells, histones will not get removed from the cis-regulatory sequences of DNA so the DNA will be more closer or tightly packed as a result of which  less transcription will occur.

7 0
3 years ago
In what way do the membranes of a eukaryotic cell vary?
ser-zykov [4K]

Answer:

The Answer is Letter E.

Explanation:

<em>The way membranes of a eukaryotic cell vary is certain proteins are unique to each membrane. </em>

The eukaryotic cells also contain other membrane-bound organelles such as mitochondria and the Golgi apparatus, and in addition, some cells of plants and algae contain chloroplasts. Unlike unicellular archaea and bacteria, eukaryotes may also be multicellular and include organisms consisting of many cell types forming different kinds of tissue.

7 0
3 years ago
Which of the following statements is false? Sunlight is the energy source for plant photosynthesis. Chlorophyll is contained in
pentagon [3]
<span>Option 1: Sunlight is the energy source for plant photosynthesis.
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Option 2: Chlorophyll is contained in organelles called chloroplasts.
True: Chlorophyll in the chloroplasts is what allows many wavelengths of light for be absorbed and used for photosynthesis. 

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