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3 years ago

Muscle fibers contain which of the following?

Biology

1 answer:

Marina86 [1]3 years ago

6 0

Answer: D

Explanation: Muscles are made of sarcolemma (membrane), sarcoplasm(tissue), and they have multi nuclei inside of them.

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When is mitosis complete?

crimeas [40]

The answer is A. When mitosis is complete, two genetically identical daughter nuclei are produced.

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3 years ago

During the summer, cool coastal breezes blow from the ocean toward the land during the day, and they blow from the land toward t

agasfer [191]

It's B because during day when temperature of air is increased water retains most of the heat to keep the temperature of atmosphere at tolarable limit. During night when sun sets ocean transfer its heat to atmosphere as heat always transfer from region of high temperature to region of low temperature. In this way temperature of air is stabilized. Hope it makes sense to you

6 0

3 years ago

Read 2 more answers

Atp made in glycolysis and the tca cycle is the result of ____ phosphorylation, and nadh-dependent atp synthesis is the result o

Stella [2.4K]

substrate-level; oxidative

Glycolysis will produce 2 ATP, 2 NADH, and 2 pyruvate molecules. If the body has oxygen, it could continue to do oxidative phosphorylation in the tricarboxylic acid(TCA) cycle which will give much more energy(total 38 ATP) than substrate level phosphorylation.

4 0

3 years ago

The kernel color in wheat is a continuous trait determined by two additive genes, each with two alleles, that equally contribute

dedylja [7]

Answer:

Phenotypic ratio: 1:4:6:4:1

Punnett square: Below in the explanation box

Frequency distribution: In the attached files

Explanation:

Available data:

The kernel color in wheat is a continuous trait determined by two additive diallelic genes
The red kernels are determined by two genes and two dominant alleles (R1R1R2R2)
The white kernels are determined by two recessive alleles at the same two genes (r1r1r2r2)
R1 and R2 alleles are dominant over r1 and r2, respectively

1st Cross: a true-breeding red plant with a true-breeding white plant

Parentals) R1R1R2R2 x r1r1r2r2

Gametes) R1R2, R1R2, R1R2, R1R2

r1r2, r1r2, r1r2, r1r2

F1) 100% R1r1R2r2

2nd Cross: F1 progeny are selfed

Parentals) R1r1R2r2 x R1r1R2r2

Gametes) R1R2, R1r2, r1R2, r1r2

R1R2, R1r2, r1R2, r1r2

Punnett square) R1R2 R1r2 r1R2 r1r2

R1R2 R1R1R2R2 R1R1R2r2 R1r1R2R2 R1r1R2r2

R1r2 R1R1R2r2 R1R1r2r2 R1r1R2R2 R1r1R2r2

r1R2 R1r1R2R2 R1r1R2r2 r1r1R2R2 r1r1R2r2

r1r2 R1r1R2r2 R1r1r2r2 r1r1R2r2 r1r1r2r2

F2) Genotype:

1/16 R1R1R2R2 (dark red)
2/16 R1R1R2r2 (red)
1/16 R1R1r2r2 (light red)
2/16 R1r1R2R2 (red)
4/16 R1r1R2r2 (light red)
2/16 R1r1r2r2 (very light red)
1/16 r1r1R2R2 (light red)
2/16r1r1R2r2 (very light red)
1/16 r1r1r2r2 (white)

Phenotype:

1/16 R1 R1 R2R2, dark red phenotype
4/16 R1r1R2R2 + R1R1Rr2, red phenotype
6/16 R1r1 R2r2 + r1r1R2R2 + R1R1r2r2, light red phenotype
4/16 R1r1 r2r2 + r1r1R2r2, very light red phenotype
1/16 r1r1r2r2, White phenotype phenotype

Phenotypic ratio: 1:4:6:4:1

Frequency table:

DOSAGE FREQUENCY

Dark red 1/16

Red 4/16

Light red 6/16

Very light red 4/16

White 1/16

3 0

3 years ago

What property of water explains why large bodies of water do not quickly fluctuate in temperature?

Lelu [443]

High specific heat capacity?
where the hydrogen bond just makes h2o more difficult to be changed in temp?

7 0

3 years ago