Match each numbered item with the most closely related lettered item. skeletal muscle....................................

Question

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Answer 1

Textbook Question

Chapter 3, Problem 1RFT

Match each numbered item with the most closely related lettered item.

skeletal muscle....................................

Expert Solution & Answer

Summary Introduction

To review:

Match the term skeletal muscle to the most closely related descriptions given below:

(a) All epithelia.

(b) Single cell layer.

(c) Urinary bladder.

(d) Cell destroyed.

(e) Connective tissue component.

(f) Unicellular, exocrine gland.

(g) Tendon.

(h) Wandering cell.

(i) Lacunae.

(j) Striated.

Introduction:

Skeletal muscles connect to the skeletal system of the body, which help in the movement of various body parts. These muscles are made up of repeated units of the sarcomere, which in turn are made of proteins-actin and myosin fibers. The functional unit of skeletal muscle, which helps in the contraction and relaxation, is sarcomere.

Explanation of Solution

The actin and myosin filaments are thin and thick filaments, respectively, which slide past each other during contraction and relaxation of the skeletal muscles. The line where actin and myosin overlap is called Z lines forming the dark band. The region between these two Z lines is the sarcomere.

The skeletal muscles are considered to be striated because of the presence of these alternating filaments of actin and myosin. Striated muscle is one of the three categories of muscles other than cardiac and unstriated muscles. These muscles are under voluntary control of somatic nervous system and are responsible for movements of our body parts.

Conclusion

Therefore, it can be concluded that skeletal muscles can be correctly matched with option (j) i.e. striated.

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Question #3: In the KeyGene paper, the authors state that it would be useful if pollen from an apomict would transmit apomixis-inducing genes to the female in the cross (assuming the pollen is viable). Assuming there was just one gene conferring gametophytic obligate apomixis, and that the two parents are inbreds, what would be the consequences of such a cross if: a) The apomixis was a dominant trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the parental cross. b) The apomixis was a recessive trait? Indicate the genotypes and phenotypes (apomict or non- apomict) of the parents, F1 and F2 generations. Remember to include the expected genotypic and phenotypic ratios (or percentages) in the F1 and F2 generations, and to position the female first (left side) in the…

Question #5: Assume that two genes are identified that confer gametophytic facultative apomixis in soybean. The genes show independent assortment. Recessive alleles at both loci are required for the facultative apomixis. Facultative apomixis is triggered when the temperature at pollination is above 20 degrees C. At temperatures below 20 degrees C, all reproduction is sexual, independent of genotype. A facultative apomict male, capable of producing viable pollen, was crossed with a sexually reproducing female. Assuming the parents are completely inbred, what are the predicted phenotypic ratios (apomict: non-apomict) for the F1, F2, and DH (F1-derived) generations at each of the following temperatures*: a) 15°C? b) 25°C? *for full credit, show crosses and genotypes where appropriate. Remember to position the female first (left side) in the cross. Type your answer here:

Answer 2

Textbook Question

Chapter 3, Problem 1RFT

Match each numbered item with the most closely related lettered item.

skeletal muscle....................................

Expert Solution & Answer

Summary Introduction

To review:

Match the term skeletal muscle to the most closely related descriptions given below:

(a) All epithelia.

(b) Single cell layer.

(c) Urinary bladder.

(d) Cell destroyed.

(e) Connective tissue component.

(f) Unicellular, exocrine gland.

(g) Tendon.

(h) Wandering cell.

(i) Lacunae.

(j) Striated.

Introduction:

Skeletal muscles connect to the skeletal system of the body, which help in the movement of various body parts. These muscles are made up of repeated units of the sarcomere, which in turn are made of proteins-actin and myosin fibers. The functional unit of skeletal muscle, which helps in the contraction and relaxation, is sarcomere.

Explanation of Solution

The actin and myosin filaments are thin and thick filaments, respectively, which slide past each other during contraction and relaxation of the skeletal muscles. The line where actin and myosin overlap is called Z lines forming the dark band. The region between these two Z lines is the sarcomere.

The skeletal muscles are considered to be striated because of the presence of these alternating filaments of actin and myosin. Striated muscle is one of the three categories of muscles other than cardiac and unstriated muscles. These muscles are under voluntary control of somatic nervous system and are responsible for movements of our body parts.

Conclusion

Therefore, it can be concluded that skeletal muscles can be correctly matched with option (j) i.e. striated.

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Answer 3

Textbook Question

Chapter 3, Problem 1RFT

Match each numbered item with the most closely related lettered item.

skeletal muscle....................................

Expert Solution & Answer

Summary Introduction

To review:

Match the term skeletal muscle to the most closely related descriptions given below:

(a) All epithelia.

(b) Single cell layer.

(c) Urinary bladder.

(d) Cell destroyed.

(e) Connective tissue component.

(f) Unicellular, exocrine gland.

(g) Tendon.

(h) Wandering cell.

(i) Lacunae.

(j) Striated.

Introduction:

Skeletal muscles connect to the skeletal system of the body, which help in the movement of various body parts. These muscles are made up of repeated units of the sarcomere, which in turn are made of proteins-actin and myosin fibers. The functional unit of skeletal muscle, which helps in the contraction and relaxation, is sarcomere.

Explanation of Solution

The actin and myosin filaments are thin and thick filaments, respectively, which slide past each other during contraction and relaxation of the skeletal muscles. The line where actin and myosin overlap is called Z lines forming the dark band. The region between these two Z lines is the sarcomere.

The skeletal muscles are considered to be striated because of the presence of these alternating filaments of actin and myosin. Striated muscle is one of the three categories of muscles other than cardiac and unstriated muscles. These muscles are under voluntary control of somatic nervous system and are responsible for movements of our body parts.

Conclusion

Therefore, it can be concluded that skeletal muscles can be correctly matched with option (j) i.e. striated.

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Answer 4

Textbook Question

Chapter 3, Problem 1RFT

Match each numbered item with the most closely related lettered item.

skeletal muscle....................................

Expert Solution & Answer

Summary Introduction

To review:

Match the term skeletal muscle to the most closely related descriptions given below:

(a) All epithelia.

(b) Single cell layer.

(c) Urinary bladder.

(d) Cell destroyed.

(e) Connective tissue component.

(f) Unicellular, exocrine gland.

(g) Tendon.

(h) Wandering cell.

(i) Lacunae.

(j) Striated.

Introduction:

Skeletal muscles connect to the skeletal system of the body, which help in the movement of various body parts. These muscles are made up of repeated units of the sarcomere, which in turn are made of proteins-actin and myosin fibers. The functional unit of skeletal muscle, which helps in the contraction and relaxation, is sarcomere.

Explanation of Solution

The actin and myosin filaments are thin and thick filaments, respectively, which slide past each other during contraction and relaxation of the skeletal muscles. The line where actin and myosin overlap is called Z lines forming the dark band. The region between these two Z lines is the sarcomere.

The skeletal muscles are considered to be striated because of the presence of these alternating filaments of actin and myosin. Striated muscle is one of the three categories of muscles other than cardiac and unstriated muscles. These muscles are under voluntary control of somatic nervous system and are responsible for movements of our body parts.

Conclusion

Therefore, it can be concluded that skeletal muscles can be correctly matched with option (j) i.e. striated.

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Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution & Answer

Summary Introduction

To review:

Match the term skeletal muscle to the most closely related descriptions given below:

(a) All epithelia.

(b) Single cell layer.

(c) Urinary bladder.

(d) Cell destroyed.

(e) Connective tissue component.

(f) Unicellular, exocrine gland.

(g) Tendon.

(h) Wandering cell.

(i) Lacunae.

(j) Striated.

Introduction:

Skeletal muscles connect to the skeletal system of the body, which help in the movement of various body parts. These muscles are made up of repeated units of the sarcomere, which in turn are made of proteins-actin and myosin fibers. The functional unit of skeletal muscle, which helps in the contraction and relaxation, is sarcomere.

Explanation of Solution

The actin and myosin filaments are thin and thick filaments, respectively, which slide past each other during contraction and relaxation of the skeletal muscles. The line where actin and myosin overlap is called Z lines forming the dark band. The region between these two Z lines is the sarcomere.

The skeletal muscles are considered to be striated because of the presence of these alternating filaments of actin and myosin. Striated muscle is one of the three categories of muscles other than cardiac and unstriated muscles. These muscles are under voluntary control of somatic nervous system and are responsible for movements of our body parts.

Conclusion

Therefore, it can be concluded that skeletal muscles can be correctly matched with option (j) i.e. striated.

Answer 8

Expert Solution & Answer

Summary Introduction

To review:

Match the term skeletal muscle to the most closely related descriptions given below:

(a) All epithelia.

(b) Single cell layer.

(c) Urinary bladder.

(d) Cell destroyed.

(e) Connective tissue component.

(f) Unicellular, exocrine gland.

(g) Tendon.

(h) Wandering cell.

(i) Lacunae.

(j) Striated.

Introduction:

Skeletal muscles connect to the skeletal system of the body, which help in the movement of various body parts. These muscles are made up of repeated units of the sarcomere, which in turn are made of proteins-actin and myosin fibers. The functional unit of skeletal muscle, which helps in the contraction and relaxation, is sarcomere.

Explanation of Solution

The actin and myosin filaments are thin and thick filaments, respectively, which slide past each other during contraction and relaxation of the skeletal muscles. The line where actin and myosin overlap is called Z lines forming the dark band. The region between these two Z lines is the sarcomere.

The skeletal muscles are considered to be striated because of the presence of these alternating filaments of actin and myosin. Striated muscle is one of the three categories of muscles other than cardiac and unstriated muscles. These muscles are under voluntary control of somatic nervous system and are responsible for movements of our body parts.

Conclusion

Therefore, it can be concluded that skeletal muscles can be correctly matched with option (j) i.e. striated.

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Summary Introduction

To review:

Match the term skeletal muscle to the most closely related descriptions given below:

(a) All epithelia.

(b) Single cell layer.

(c) Urinary bladder.

(d) Cell destroyed.

(e) Connective tissue component.

(f) Unicellular, exocrine gland.

(g) Tendon.

(h) Wandering cell.

(i) Lacunae.

(j) Striated.

Introduction:

Skeletal muscles connect to the skeletal system of the body, which help in the movement of various body parts. These muscles are made up of repeated units of the sarcomere, which in turn are made of proteins-actin and myosin fibers. The functional unit of skeletal muscle, which helps in the contraction and relaxation, is sarcomere.

Answer 12

Explanation of Solution

The actin and myosin filaments are thin and thick filaments, respectively, which slide past each other during contraction and relaxation of the skeletal muscles. The line where actin and myosin overlap is called Z lines forming the dark band. The region between these two Z lines is the sarcomere.

The skeletal muscles are considered to be striated because of the presence of these alternating filaments of actin and myosin. Striated muscle is one of the three categories of muscles other than cardiac and unstriated muscles. These muscles are under voluntary control of somatic nervous system and are responsible for movements of our body parts.