Answer:
The pancreas contains exocrine glands that produce enzymes important to digestion. These enzymes include trypsin and chymotrypsin to digest proteins; amylase for the digestion of carbohydrates; and lipase to break down fats.
Explanation:
The question is incomplete as it does not have the options which are:
a) DNA
b) AGCT
c) PCR
d) SNP
Answer:
PCR (polymerase chain reaction)
Explanation:
The polymerase chain reaction is the technique which replicates and produces multiple copies of the DNA molecule artificially in a short period of time.
The PCR technique employs a variety of enzymes and all the prerequisites which are required in the DNA replication in vivo conditions.
In the given question, if the genome of the mummy has to sequence then after the collection of samples from the bones, the DNA has to replicate through the process of PCR. The samples from the different bone structures can be compared and analysed and a complete genome sequence can be analysed.
Thus, PCR is correct.
Answer:
Charles Robert Darwin was a British naturalist and biologist known for his theory of evolution and his understanding of the process of natural selection
Explanation:
2. <u>Some of these variations are passed on to offspring;</u>
- As the genetic changes may occur due to mutations in the genes.
- As these changes do not occur in days or months but they occur after hundred and thousands of years.
- The off springs are distinct from their ancestors. This results in the formation of new species. Gradual modification of the existing species leading to the formation of new species is known as speciation.
4<u>.Individuals vary in their ability to survive and reproduce</u>;
- Those with the most favorable adaptations are more likely to survive and reproduce.
- Individual variation (usually through mutation) may introduce traits or abilities that enable that individual to survive in order to reproduce. Usually these are tiny incremental changes that accumulate over centuries or millennia.
<u>Note:</u><em> However there are certain drawbacks of Darwinism even such as it failed to explain the basis of variation and the mode of transmission of characters.
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Answer:
Structurally, plant and animal cells are very similar because they are both eukaryotic cells. They both contain membrane-bound organelles such as the nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes, and peroxisomes. Both also contain similar membranes, cytosol, and cytoskeletal elements.
