1. A chromosome contains one long DNA molecule.
DNA or deoxyribonucleic acid is a fundamental and essential macromolecule that is built from the chain of nucleotides. A nucleotide consists of one of four nitrogen-containing nucleobases (cytosine [C], guanine [G], adenine [A] or thymine [T]), a sugar called deoxyribose, and a phosphate group. DNA carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms. It is organized (packed) into structures-chromosomes and during cell division, these chromosomes are duplicated in the process of DNA replication. The process of replication provides each cell with its own complete set of chromosomes.
2. Each gene in this molecule gives the instructions for making a PROTEIN.
The genetic information in a genome is held within genes. Genes are a sequence of DNA that codes for a molecule that has a function, and usually, it is a protein. During gene expression, the DNA is first copied into RNA in a process called transcription. Then, synthesized RNA can be directly functional or be the template for a protein that performs a function. Synthesis of protein from RNA is a process called translation.
3. Both chromosomes in a pair of HOMOLOGOUS chromosomes have the same GENE, but the two chromosomes may have different ALLELES.
Homologous chromosomes are a set of one maternal and one paternal chromosome. Those chromosomes pair up with each other inside a cell during meiosis. Homologs have the same genes in the same loci but the alleles may be different, resulting in different phenotypes of the same genes. During the meiosis, the process of crossing over occurs when homologous chromosome pair exchange parts of DNA with one another.
4. Chromosomes that are not homologous have different GENE which gives the instructions for making different kinds of proteins.
Non-homologous chromosomes differently from homologous consist of alleles of different types of genes. Non-homologous chromosomes do not pair during meiosis and the shape of the chromosome, the length of the arms and the position of the centromere, is different among those chromosomes.
lose
gain
Answer;
Complete
Valence is the number of electrons an atom must gain or lose in order to complete its outer energy level or have a stable octet in its outer shell.
Explanation;
-Valency is the number of electrons that an atom requires to gain or lose to form a complete configuration or an octet configuration.
-Atoms tend to lose or get electrons in order to achieve the electronic arrangement of atoms of the noble gases. An ion is an atom or group of atoms having an overall electrical charge. Atoms gain electrons to form cations (positively charged atom), while other lose to form anions (negatively charged atoms).
Answer: A) inadequate technology
Explanation:
Transgenic organisms are those organisms which are genetically modified by human beings. The knowledge and practice of genetic engineering is used to modify the genome of the organism, by either removing the defective part of it or by adding genes of other organisms so as to obtain desired qualities in them. Animals as compared to plants are more complex organisms as they probably perform more functions like hearing, watching, locomotion and other. Also the plants are abundantly available and several plants can be obtain by vegetative propagation for experimenting the genetic manipulation. It is quiet difficult to generate an entire animal by tissue culture for genetic manipulation. Also it is bit risky and technologically challenging to experiment such manipulations on live animals.
On the basis of above explanation A) inadequate technology is the correct option.
Answer:
A) inadequate technology.
Explanation:
b-The zygote of Plasmodium multiples in the gut of a mosquito to form sporozoites, whereas when sporozoites multiply in human liver cells, they form spores called merozoites.
c-The zygote of Plasmodium multiples in human liver cells forming the merozoites, whereas when merozoites multiply in the gut of a mosquito, they form spores called sporozoites.
Answer:
The answer is B: "The zygote of Plasmodium multiples in the gut of a mosquito to form sporozoites, whereas when sporozoites multiply in human liver cells, they form spores called merozoites."
Explanation:
In Plasmodium, for example, the sporozoites are cells that produce in the mosquito's salivary glands, leave the mosquito during a blood meal, and drive liver cells (hepatocytes), where they generate. Cells infected with sporozoites ultimately burst, delivering merozoites into the bloodstream. Merozoites are non-motile.A merozoite is a daughter cell of a protozoan parasite. Merozoites are the consequence of asexual propagation. Sporozoites are designed by sporogony, a type of sexual or asexual reproduction by multiple fission of a spore or zygote, representative of many sporozoans.
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