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3 years ago

After eating half of a banana as a snack, you decide to save the rest for later. There are two types of plastic wrap in your

Biology

1 answer:

olchik [2.2K]3 years ago

6 0

The plastic wrap that could have caused the browning effect is the ; Plastic wrap made of polyethylene

Ethylene is a multifunctional phytohormone that regulates growth and senescence ( softening and ripening of fruits ) in plants. Ethylene is a gaseous substance produced by fruits after they are harvested, which accelerates the softening and ripening of the fruits.

The browning of the banana will mostly likely be caused by the presence of the ethylene in the polyethylene plastic wrap.

Hence the plastic wrap that could have caused the browning effect on the banana is the polyethylene plastic wrap.

Learn more : brainly.com/question/17340947

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3 years ago

Identify how the addition of acetyl groups to histones leads to a weaker association of DNA in nucleosomes.

kipiarov [429]

The addition of acetyl groups to histones leads to a weaker association of DNA in nucleosomes because they help to condense it into chromatin.

<h3>What is the relationship between histones and DNA?</h3>

Histones are a family of basic proteins that associate with DNA in the nucleus and help to condense it into chromatin. Nuclear DNA does not appear on free linear strands; it is highly condensed and involves histones to fit inside the nucleus and participate in the formation of chromosomes.

<h3>How does DNA compact with histones?</h3>

Each chromosome is made up of a single molecule of double-stranded DNA wrapped around histones, the nucleosome. This fiber rewinds into a second level of compression, known as the solenoid. Most of the time, cells keep the DNA compacted in the selenoid loops attached to the chromosomal backbone.

Whit this information, we can conclude that the addition of acetyl groups to histones leads to a weaker association of DNA in nucleosomes because they help to condense it into chromatin.

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2 years ago

Which process occurs during the growth and development of a fertilized human egg

irga5000 [103]

Answer:

Fertilized human egg becomes a solid ball of cells known as morula which then differentiate into blastocyst to fully grown human baby.

Explanation:

1. As the zygote is formed it starts to divide and multiply while moving toward the uterus to form a blastocyst within five days.

2. The blastocyst attaches to the wall of the uterus by implanting itself to the uterine lining

3. Within the 15 days of conception, placenta and umbilical cord starts developing to bring in nutrients and eliminate waste

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5. By end of 4 weeks, embryo develops distinct head, tail and heart

6. By end of 10th week, limbs, eyes, brain regions, and vertebrae form

7. Around week 36 labors begins.

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3 years ago