Answer:
The correct answer will be option-C
Explanation:
Replication is a complex process which makes copies or replicates the DNA in every organism present on the Earth. Replication is an ATP dependent process which is catalysed by several enzymes including DNA helicase, polymerase, primase.
During replication, the two strands are synthesized from parent strand in which the strand which is synthesized in 5' to 3' direction is known as the leading strand which is continuous whereas another strand synthesized in 3' to 5' direction is known as lagging strand as it is produced in the lags.
Since in the leading strand DNA polymerase adds nucleotides at 3' end, therefore, it requires only one RNA primer which assists DNA polymerase to proceed the reaction whereas in the lagging strand since the strands are synthesized in the lags so possess many RNA primers so that DNA polymerase can bind.
Thus, option-C is the correct answer.
During Meiosis 1 in Prophase 1 crossing over occurs. The two chromosomes switch part of their genetic information. Also independent assortment occurs during meiosis which is the formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes.
The correct answer is C.) Conifers release pollen grains.
Conifers are gymnosperms which produces naked seeds. Conifers reproduces sexually by producing male and female cones. Male cones are produced in cluster. Male cones contains many microsporangia. In microsporangia have microspore mother cells which undergo meiosis to produce microspores or pollen grains. Pollen grains are release from male cone.
The daughter cells are identical to the original cell.
<u>Answer:</u>
<em>The minerals that are formed </em><em>deep beneath the earth surface</em><em> comes to the earth's surface by following two ways.</em>
<u>Explanation:</u>
It can come out in the form of volcano or lava and once cooled will form an igneous rock. It can also come out due to the movement of tectonic plates and can for metamorphic rock.
Basalt and granite are the commonly found minerals. The mineral crystals mostly form rocks. The lava on the surface sometimes gets cool so quickly that it fails to crystallise some minerals.
