Answer:
When light energy is absorbed by a chlorophyll molecule its electrons gain energy and move to higher energy levels in the molecule
Answer:
Immunity to Small Pox
Explanation:
Over the years, Europeans had built up an immunity to smallpox because many had contracted the disease and still survived. As the population grew children were born with some immunity to the disease. When the Europeans arrived in the Americas, and smallpox spread around the native peoples, the Europeans did not contract the disease because they were immune. However, since the natives were not immune, they slowly died of due just to the disease as well as some parts of the war between the europeans.
Answer:
3. haploid; diploid
Explanation:
Sperm is male gamete or often called male reproductive cell. During the process of spermatogenesis, reductional division (meiosis) occurs in the spermatocytes and spermatids are formed which further mature to sperms. Thus as a result of meiosis, their chromosome number is reduced to half and thus they become haploid cells. During oogensis, eggs are also formed as a result of meiosis which reduces the chromosome number and so eggs are also haploid.
When during fertilization, these two haploid nucleus of these cells fuse together, they form a diploid zygote.
DNA contains the template needed to copy itself, but it has no catalytic activity in cells. <u>DNA polymerase</u> <u>(Option B)</u> catalyzes the formation of phosphodiester bonds between adjacent nucleotides in the DNA polymer being formed during DNA replication.
DNA polymerase catalyzes the formation of the phosphodiester bond by adding the deoxynucleoside triphosphate onto the growing polynucleotide chain. During this step-wise process, a single pyrophosphate molecule is released every time the chain is elongated by one deoxyribonucleotide.
The main function of the third polymerase is duplication of chromosomal DNA, while others are involved mostly in DNA repair and translation.
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