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3 years ago

The antiparallel arrangement within DNA molecules refers to Select one:

Biology

1 answer:

mylen [45]3 years ago

4 0

Answer:

c. one helix strand that runs from the 5' to 3' direction and the other strand runs from the 3' to 5' direction.

Explanation:

A DNA molecule has two strands of nucleotides with a sugar phosphate backbone each, but orientated on the opposite direction allowing for the base pairs to complement one another, making it a more stable structure. When two biopolymers run parallel to each other but with opposite directionality (alignment) we have an antiparallel arrangement.

I annexed an image of the DNA structure.

I hope you find this information useful and interesting! Good luck!

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The purposes of zoos and aquariums are the following four reasons. Match the definition with the term.

Igoryamba

QUESTION ONE
Here are the answers:
1. The purpose of zoo described in question 1 is EDUCATIONAL: it provides knowledge about animals' lives.
2. CONSERVATION: It protects the animals from becoming extinct.
3. RESEARCH: It is a source of animal specimens for research studies.
4.ENTERTAINMENT: people go to zoos to relax and to have fun.
QUESTION 2
The statement is TRUE.
Zoo has a lot to offer in term of educating the public and that includes the topic of biodiversity. Biodiversity refers to the variety of living organisms in the world and the relationships that exist among them. Those animals have the way they relate with other organisms. Thus, the topic of biodiversity can be treated using zoo.

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3 years ago

This is science the question is what caused the jelly population to increase.

vampirchik [111]

Answer:

When the walleye pollock population decreased, there were more zooplankton available for the moon jellies to eat. Since the jellies had more energy storage molecules, they were able to reproduce more. This lead to more births than deaths in the moon jelly population, which caused the jelly population to increase.

Explanation:

here

7 0

3 years ago

Read 2 more answers

are narrow-diameter, unmyelinated sensory nerve fibers that transmit signals from pleasant touch. A. P tactile efferents B. C ta

KIM [24]

Answer:

Option E, C tactile (CT) afferent

Explanation:

Whenever a slow moving gentle touch experienced, the response is due to the nerve fibers called C-Tactile afferents (CTs).

C-Tactile afferents (CTs) are unmyelinated mechanoreceptors of low threshold and low conduction velocities.

In humans, CT neurons are found in hairy skin.

The pleasant feeling observed during a slow gentle touch is due to the interaction of

CT neurons project to the insular cortex in the brain

Hence, option E is correct

4 0

3 years ago

In cats having hair is dominant (H) over not having hair (h). If a male cat that is heterozygous for hair is crossed with a hair

alexgriva [62]

A heterozygous cat has a genotype Hh
A hairless cat has a genotype hh
When crossed, the results could be any of the following:
Hh (with hair)
hh (hairless)
There is a 50:50 chance or 1: 1 ratio that the offspring will have hair.

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3 years ago

The sliding filament model is our best explanation of how a skeletal muscle shortens. Based on your knowledge of the structure o

Veseljchak [2.6K]

A sacromere is a segment between two adjacent Z discs and are essential for the striated structure of the cardiac and skeletal muscles.

Explanation:

The Z disc is surrounded by the I band made of thin filament called actin. The I band is followed by the A band made up of thick filament called myosin. When the muscles contract the actin and the myosin become superimposed/overlapped.

The sliding filament model explains the contraction of the sacromere in which the Z discs move closer due to the overlapping of the thin and thick filaments. Thus the I band moves close to the A band which remain the same length as shown in figure.

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3 years ago