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vodomira [7]
3 years ago
12

Action potentials in the heart spread from cell to cell through

Biology
1 answer:
Leni [432]3 years ago
8 0

Answer:

Gap junctions within the intercalated disks

Explanation: Gap junctions within the intercalated disks allow impulses to be propagated from one cardiac muscle cell to another. It allows sodium, potassium, and calcium ions to flow between adjacent cells, propagating the action potential, and ensuring coordinated contractions.

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Consider a population of 919 individuals, in which a locus G/C determines the pigmentation in snow rabbits. GG and GC carriers s
mixas84 [53]

Answer:

Frequency of recessive allele 0.61

Explanation:

Given -

Total Population size = 919

Number of individual with recessive genotype = 341

Frequency of recessive genotype

\frac{341}{919} = 0.37

Frequency of recessive allele = \sqrt{0.37}  = 0.609 = 0.61

Hence, option C is correct

4 0
2 years ago
Indicate at which step of the replication-transcription-translation process each type of RNA first plays a role. During which st
kolezko [41]

Answer:

<h2> Replication: DNA  into DNA, and RNA primer are required;</h2><h2>Transcription/RNA processing: pre mRNA and then mRNA;</h2><h2>Translation: tRNA, rRNA</h2>

Explanation:

1. During replication,  a semi-conservative copy of a DNA molecule is made with the help of various enzymes and RNA primer.

2. Transcription/RNA processing: mRNA

During transcription, the DNA "message" ( in the form of codon) is copied into  mRNA.

3. Translation: tRNA, rRNA

During translation, the information carried in the mRNA is translated into protein with the help of molecules of tRNA and rRAN to build a protein on the ribosomes.

6 0
3 years ago
Read 2 more answers
Enzymes catalyze reactions by
grandymaker [24]

Answer:

idk but good luck i hope you get it right

Explanation:

6 0
3 years ago
Enumerate the cell structures involved, raw materials, end product and energy requirement in photosynthesis and cellular respira
Genrish500 [490]

Answer: hope this was hopeful

Explanation:

Title: Photosynthesis VS Respiration.Objective: Differentiate photosynthesis and respiration in terms of cell structures involved, rawmaterials, end product and energy

3 0
3 years ago
How has society responded to increased cell phone use and overuse of plastic bags? Check all that apply
iragen [17]

Answer:

A, B, D

Explanation:

6 0
3 years ago
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