As hinted in the question, the cross bridge cycle is a
series of molecular events that occur after excitation of the sarcolemma. A
cross bridge is formed when a myosin head bound to actin. The cross bridge
cycle depends on the presence of calcium ions
Answer:
D. GGACCGTCGATCCTT
Explanation:
Mutation refers to any change in the nucleotide sequence of a gene. Mutation can be of different types depending on how it occurs. According to the question, an INVERSION mutation is a type of mutation in which a segment of a gene gets broken off and reattached in another way on the same DNA. Hence, the only change in inversion mutation is the arrangement of the nucleotide bases on the gene.
Considering the nucleotide sequence: GGACCGTCGATCTTC, the sequence that describes an occurrence of inversion mutation is: GGACCGTCGATCCTT because the segment TTC in the original sequence has been rearranged as CTT in the mutated sequence.
Answer:
The correct option is C. Spine is present on the posterior surface of the scapula
Explanation:
The scapula is a triangular bone that joins humerus with the clavicle.
The landmarks present on the posterior surface of the scapula are:
1. Spine: The spine of the scapula divides it into two parts.
2. Acromion: This is the landmark that connects with the clavicle.
3. infraspinous fossa: This landmark is present underneath the spine and the infraspinatus muscle is located here.
4. Supraspinous fossa: It is the landmark that is situated on top of the spine.
Answer:
Without bats, say goodbye to bananas, avocados and mangoes. Over 300 species of fruit depend on bats for pollination. Bats help spread seeds for nuts, figs and cacao -- the main ingredient in chocolate. Without bats, we also wouldn’t have plants like agave or the iconic saguaro cactus.
Explanation:
