The correct answer is: The synaptonemal complex.
Non-sister chromatids are chromatids from two homologous chromosomes. In prophase I of meiosis two homologous chromosomes pair and this pairing is called synapsis. This allows possible crossing over to occur. Two non-sister chromatids are connected in synapsis by a protein-RNA complex called the synaptonemal complex.
Crossing-over or the physical exchange of chromosome parts might occur and bring to genetic recombination. The sites of crossing-over between nonsister chromatids and are called chiasmata.
The answer is A: sac that stores water, nutrients, and waste products :)
Answer:
Option (C)
Explanation:
Sedimentary rocks are those rocks that are formed due to the compaction and lithification of sediments.
When the rocks are weathered by the agents such as wind, water and ice, the sediments or the particles are carried from that particular area to a different place. The sediments are then continuously deposited in a different place. As a result of which the sediments are accumulated over one another, forming layers. These sediments over a due course of time undergoes compaction and solidification due to the weight of the overlying rocks. This is how the sedimentary rocks are formed. Some of the examples of sedimentary rocks are sandstone, limestone, shale, and mudstone.
Thus, the correct answer is option (C).
Answer:
Signal transmission at the synapse.
Explanation:
At the synapse, an electrical signal arrives at the pre-synaptic terminal an triggers vessicles to release neurotransmitters into the synaptic cleft.
These neurotransmitters activate receptors in the post-synaptic neuron and produce electrical signals.
Pain killers work by by preventing damaged or injured cells from producing prostagladins. Prostagladin is released when cells in the body are injured or damaged.
