A transformer is used to light a 140 W, 24 V bulb from a
240 V a.c. mains. The current in the main cable is 0.7 A. The
efficiency of the transformer is
(a) 63.8 % (b) 83.3 % (c) 16.7 % (d) 36.2 %
Answers
Answer:
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Answer:−
Q1.
1. generation
2.transcription
3.genetic
4.pre-mrna
5.pernicius
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Q2.
1. Genes are a set of instructions that determine what the organism is like, its appearance, how it survives, and how it behaves in its environment. Genes are made of a substance called deoxyribonucleic acid, or DNA. They give instructions for a living being to make molecules called proteins.
2. Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions for the development and function of living things. All known cellular life and some viruses contain DNA. The main role of DNA in the cell is the long-term storage of information.
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Q3.
1.Heredity refers to the genetic heritage passed down by our biological parents. It's why we look like them! More specifically, it is the transmission of traits from one generation to the next. These traits can be physical, such as eye colour, blood type or a disease, or behavioural.
2.Transcription is the first of several steps of DNA based gene expression in which a particular segment of DNA is copied into RNA by the enzyme RNA polymerase. Both DNA and RNA are nucleic acids, which use base pairs of nucleotides as a complementar language.
3.The process of translation can be seen as the decoding of instructions for making proteins, involving mRNA in transcription as well as tRNA. The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.
4.Translocation means a change in location. It often refers to genetics, when part of a chromosome is transferred to another chromosome. Chromosomes are structures that carry genes, our units of heredity. When this type of translocation occurs, it can cause flaws in chromosomes.
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Q4
1. Rna - ribonuclic acid
2. DNA - deoxyribonucleic acid
3. mRNA - messenger rna
4. trna - Transfer ribonucleic acid
5. rna - ribonuclic acid
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Q5
translation -
The process of translation can be seen as the decoding of instructions for making proteins, involving mRNA in transcription as well as tRNA. The pre-mRNA is processed to form a mature mRNA molecule that can be translated to build the protein molecule (polypeptide) encoded by the original gene.
translocation-
Translocation means a change in location. It often refers to genetics, when part of a chromosome is transferred to another chromosome. Chromosomes are structures that carry genes, our units of heredity. When this type of translocation occurs, it can cause flaws in chromosomes.
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Q6.
1. A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people. Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a