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Anuta_ua [19.1K]
3 years ago
8

Help!!

Biology
1 answer:
Assoli18 [71]3 years ago
3 0
Gamma rays are the most harmful of the given options as they can penetrate the skin and damage our cells.
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Which kingdom contains organisms that are multicellular,heterotrophic, eukaryotic and lack cell walls
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<span>Animalia -</span><span>  Mammals, amphibians, reptiles, birds, fish, mollusks, and insects are all included in this kingdom.</span>
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3 years ago
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Without adding specific regulatory proteins, how might you stimulate transcription from the gene of interest relative to the tra
german

Answer:

By transfecting small activating RNAs

Explanation:

Small activating RNAs (saRNAs) are an emerging class of non-coding RNAs (ncRNAs) that are capable of activating gene expression at transcriptional level. The saRNAs are small double-stranded RNAs (dsRNAs) that bind to promoter sequences in order to activate the expression of target genes. These molecules are structurally similar to small interfering RNAs (siRNAs), i.e., they also have a size of 21 nucleotides and two overhang nucleotides at the 3' end of both strands.

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3 years ago
Durairajanayagam D, Agarwal A, Ong C. Causes, effects and molecular mechanisms of testicular heat stress. Reproductive biomedici
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Temperature affects spermatogenesis, which functions best at body temperatures just a little lower than those.

<h3>Abstract:</h3>

To keep testicular temperatures below those of the body core, adequate thermoregulation is essential. The process of mammalian spermatogenesis and the resulting spermatozoa are negatively impacted by elevated testicular temperature. Therefore, sperm quality can be affected and the likelihood of infertility is increased by thermoregulatory dysfunction resulting in heat stress. This article reviews a variety of internal and external factors that may lead to testicular heat stress. We go into more detail on how heat stress affects the spermatogenesis process, the resulting epididymal spermatozoa, germ cells, and the alterations that result in the testis.

We also go over the chemical reactions of germ cells to heat exposure and potential processes, such as apoptosis, DNA damage, and autophagy, that could lead to heat-induced germ cell damage. Further explanation is provided for the intrinsic and extrinsic processes involved in the complex mechanism of germ cell death. These intricate apoptotic pathways ultimately result in the demise of germ cells.

Learn more about spermatogenesis here:

brainly.com/question/1594056

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3 0
1 year ago
Carbon ______________ are processes that add carbon to the atmosphere. Carbon ______________ are processes that absorb carbon
OlgaM077 [116]

Answer:

Carbon sources

Carbon sequestration

Explanation:

Carbon sources are regions that produces atmospheric carbon dioxide. This carbon dioxide is naturally added to the atmosphere when organisms respire, decompose, rocks with carbonate are weathered and volcanoes erupt.

Carbon sequestration is the process of taken and storing atmospheric carbon dioxide. The method helps in reducing the amount of carbon dioxide in the atmosphere which in turn reduces global climate change.

8 0
2 years ago
Which is a possible reason for the transition of algae from unicellularity to multicellularity? A) the transition to multicellul
galben [10]

A possible reason for the transition of algae from unicellularity to multicellularity would be the evolution of multicellularity allowed algae to develop traits that keep them close to the land and thus a source of nutrients. The correct answer between all the choices given is the last choice. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

6 0
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