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aliina [53]
3 years ago
6

Plasma membranes of adjacent cardiac muscle cells interlock at specialized regions called intercalated disks. what is the signif

icance of this feature of cardiac muscles?
Biology
1 answer:
Nataly [62]3 years ago
5 0
<span>Intercalated discs have a function in connecting individual heart muscle cells (cardiomyocytes) and making them work as a single functional organ or syncytium. As a result, the contraction of cardiac tissue is synchronized. </span> <span>Intercalated discs are transverse bands that separate the adjacent ends in cardiomyocytes and appear as stained irregular lines at 90 degrees to the striped sarcomeres.</span>
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3) Use a Punnett square to help answer the question.
shutvik [7]
50 IS THE ANSWER
HOPE IT HELPS

8 0
3 years ago
Read 2 more answers
A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 4 picograms of DNA
damaskus [11]

Answer:

b: 8;8

Explanation:

Mitotic or meiotic cell division constitute the m phase of the cell cycle. At the end of the m phase, the new cells enter the interphase stage of the cell cycle. The interphase is further sub-divided into;

  • <em>the G_0 phase,</em>
  • <em>the G_1 phase,</em>
  • <em>the S phase; and</em>
  • <em>the G_2 phase</em>.

The G_0 phase is essentially a resting phase. Cells that do not need to divide except when necessary move into this phase after exiting the m phase.

Actively dividing cells enter the G_1 phase after exiting the m phase. Cell development and growth takes place. From there, the cells enter the S phase where DNA replication/synthesis takes place. The cells then enter the G_2 phase where proteins are synthesized in preparation for division or m phase.

At the S phase, the amount of DNA a cell carries is doubled but the chromosome number remains the same. For example, if a cell enters the S phase with 2 g of DNA containing 10 chromosomes, at the end of S phase, the amount of DNA would have come 4 g while the number of chromosomes will remain 10.

Hence, if the average amount of DNA in the assayed cells immediately after mitosis is 4 picograms, the amount would be 8 picograms at the end of S phase and will still remains 8 picograms at the end of G_2 phase.

The correct option is b.

8 0
3 years ago
31. The Richter Scale is a logarithmic scale, meaning the numbers on it increase by a factor of
AlexFokin [52]

10

Explanation:

The Ritcher scale is a logarithmic scale and it suggests that the number increases by a factor of 10.

One point on the scale differs from another by an order of 10.

  • The Ritcher scale is used to measure the magnitude of earthquakes in a particular area.
  • It is graduated form 1 to 10
  • The magnitude of the quake increases as one moves from 1 through 10.
  • This is because the magnitude of the quake actually increases by an order of 10.

Learn more:

Earthquake brainly.com/question/6520403

#learnwithBrainly

3 0
4 years ago
In pea plants the allele for tall plants in dominant to the allele for short plants, and the allele for purple flower colour is
Tom [10]

Answer:

The correct answer is - 4. ttPp

Explanation:

Given - tall is dominant over short pea plant

let assume T is dominant and t is short which is recessive

Similarly, P for dominant purple flower and p for white flower

The offspring has a short plant which means it has both t allele or recessive allele for the height of a plant by the cross of a true-breeding purple and true-breeding white:

    P   P

p   Pp Pp

p   Pp Pp

This means the offspring would have a heterozygous case for the genotype of the flower of the pea plant

Thus, the correct answer is ttPp

7 0
3 years ago
What tissue contains large amounts of fluid and transports nutrients wastes and gases?
Elza [17]

Blood is the connective tissue that contains large amounts of fluid and transports nutrients wastes and gases.

Blood is considered a connective tissue as it has the same origin as other connective tissues like cartilage and bone cells. Blood also connects the whole body together and transports the needed oxygen, hormones, other nutrients and blood throughout the body and also expels out wastes.

4 0
3 years ago
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