Ques:Q: What is the process of creating complementary strands of mrna called? Read this paragraph and choose the correct option from the provided answers: Overview of Transcription. Transcription uses the sequence of bases in a strand of DNA to make a complementary strand of mRNA. Triplets are groups of three successive nucleotide bases in DNA. Codons are complementary groups of bases in mRNA. Every triplet, or codon, encodes for a unique amino acid. Choices: - mutation - division - differentiation - transcription A:

Ans:transcription
-----
Ques:Q: When electrons are shared between two atoms, they make a bond called a what? Read this paragraph and choose the correct option from the provided answers: Ionic bonding typically occurs when it is easy for one atom to lose one or more electrons and another atom to gain one or more electrons. However, some atoms won't give up or gain electrons easily. Yet they still participate in compound formation. How? There is another mechanism for obtaining a complete valence shell: sharing electrons. When electrons are shared between two atoms, they make a bond called a covalent bond. Let us illustrate a covalent bond by using H atoms, with the understanding that H atoms need only two electrons to fill the 1s subshell. Each H atom starts with a single electron in its valence shell:. Choices: - metallic bond - ionic bond - hydrogen bond - covalent bond A:

Ans:covalent bond
-----
Ques:Q: In eukaryotes, the new mrna is not yet ready for translation. it must go through more processing before it leaves where? Read this paragraph and choose the correct option from the provided answers: In eukaryotes, the new mRNA is not yet ready for translation. It must go through more processing before it leaves the nucleus. This may include splicing, editing, and polyadenylation. These processes modify the mRNA in various ways. Such modifications allow a single gene to be used to make more than one protein. Choices: - Electrons - molecules - protons - nucleus A:

Ans:nucleus
-----
Ques:Q: Comprised mainly of collagen and associated with long bones and the skull, hyaline is the most widespread type of what? Read this paragraph and choose the correct option from the provided answers: Cartilage: There are three cartilage types: 1. hyaline cartilage 2. fibrocartilage (fibrous cartilage) 3. elastic cartilage Hyaline cartilage: most widespread cartilage type, in adults forms articular surfaces of long bones, rib tips, rings of trachea, and parts of skull. Mostly collagen, name refers to glassy appearance. In embryo, bones form first as hyaline cartilage, later ossifies. Found in tracheal rings. Few collagen fibers. Fibrous cartilage: have lots of collagen fibers. Found in intervertebral discs, pubic symphesis. Grades into dense tendon and ligament tissue. Elastic cartilage: springy and elastic. Found in internal support of external ear and in epiglottis, yellow when fresh. Chondrocites (cartilage cells) rely on diffusion for nutrients, as cartilage has no direct blood supply, and no enervation (nerves). Can be loaded with calcium salts. Choices: - enzymes - tissue - cytoplasm - collagen A:

Ans:
collagen
-----