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Mumz [18]
2 years ago
15

Which component of the thin filament makes the main string of pearls portion of the filament?

Biology
1 answer:
Brums [2.3K]2 years ago
3 0

jagged line of protein discs which attach thin filaments from end to end,  trace the boundary where sarcomeres connect, thick  type of smallest muscle unit: composed of staggered arrays of many myosin molecules which interact with actin when calcium is present. 

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What combinations of alleles could result from a crossover between BD and bd chromosomes?
AysviL [449]

Answer:

Bb, Db , Bd and Dd

Explanation:

When a cross between two parents (having certain trait) is carried out , they share their alleles with each other to produce offspring with new traits. These offspring have gentically different allele combination as compared to their parents. A  genetic cross can be represented by a punnet square (as given below)

The cross between two parents with genotype "BD" and "bd" will result into the following offspring -

B D

b Bb Db

d Bd Dd

4 0
2 years ago
Read 2 more answers
Explain how ligand A and ligand B can cause identical cellular responses in a cell?
Alexus [3.1K]

Answer:

Ligand A and ligand B can cause same cellular responses in a cell when they are attached to different receptors.

Explanation:

If two same ligands are attached to two different receptors, two different responses will occurs. Such type of response is present in acetylcholine, while when two different ligands attached to two different receptors, same response will occur. This type of response is present in glucagon and epinephrine etc. ligands are responsible for controlling the transcription process when it binds or attached to the DNA molecule of the cell.

3 0
2 years ago
Quiz: sensation and perception select the best answer to each question. our perception of the brightness of a color is affected
zmey [24]

Our perception of the brightness of a color is affected mainly by: the amplitude of light waves.

Night and peripheral vision depend mainly on rods, while daylight and acute vision depend mainly on cones.

The amount of light entering the eye is regulated by changes in the size of the pupil.

If you project a red, a green, and a blue light into space, the point at which the three lights cross will lead to the perception of white light.

eric has been wearing red welding goggles for the past 30 minutes. Based on the opponent-process theory of color vision, when Eric takes off the red goggles, he should expect that objects will temporarily appear to be green.


3 0
2 years ago
A biology teacher wants students to remember the various components of a cell (nucleus, cytoplasm, cell membrane). considering w
Ede4ka [16]
The teacher would be well advised to help students encode information about the cell using both visual and verbal forms. This is because, multiple forms of encoding increases the probability of easy retrieval. Encoding in this case involves converting the names of the cell organelles to forms that can easily be remembered.
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Imagine looking through a microscope at a squashed onion root tip. The chromosomes of many of the cells are plainly visible. In
SIZIF [17.4K]

Answer:

D) metaphase

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Metaphase is the stage of the cell division during which the chromosome is present in the highly condensed form present in the centre of the cell. The chromosomes are aligned at the equator of the cell.

Thus, metaphase is the correct answer.

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