It has four heart chambers, just like birds and mammals.
They change how the land is and what we can do with that land.
Ans.1. False.
RNA or ribonucleic molecules are polymer of nucleotide molecules that perform various functions in a cell. rRNA is referred as ribosomal RNA and are involved in synthesis of ribosomes along with proteins. Ribosomes are described as molecular factory for protein synthesis, hence, rRNA plays an important role in protein synthesis.
Thus, given statement is false.
Ans.2.
Transcription is defined as a process, by which a parental DNA molecule gets transcribed into a RNA molecule with the help of RNA polymerase enzyme. The RNA molecule is then, translated into a specific polypeptide chain or protein.
According to central dogma of molecular biology, genetic information flows from a DNA molecule to a protein. During this, first step includes transcription (formation of RNA from DNA) and second step includes translation (formation of protein form RNA).
Thus, transcription plays an important role in the central dogma of molecular biology.
Answer:
The number will be 208 after third generation.
Explanation:
Meiosis is a type of cell division that occur in eukarytotic reproductive cells and it divide diploid chromosomes into haploid chromosomes. Nuclear division happen twice in meiosis.
The diploid number for the chromosome number of frog is 26. There fore if there is no occurrence of meiosis before gametes are formed there won't be any reduction in the number of chromosomes. The gametes will be diploid and it will have the same number of chromosomes as the parent cell which is 26. Zygote will be formed after the egg fuses with the sperm.
The first generation will be 26 + 26= 52.
Second generation is 52 + 52=
104.
Third generation is 104 + 104 = 208.
The chromosome number will be doubling from generation to generation if meiosis did not occur. After theirs generation it will be 208.