The correct answer is B. False
Explanation:
In development, a growth spurt refers to a period of time in which individuals experience rapid growth or development. In the case of an adolescent growth spurt, this is a natural process that occurs to all individuals including boys and girls during puberty. This takes place because during adolescence the hormone levels change and this leads to rapid growth as well as development or maturation of bones, muscle and the sexual or reproductive system. According to this, it is false an adolescent growth spurt occurs only in boys because this is a natural process that occurs on both girls and boys.
B. It is stored in the nucleus and is used to make DNA.
C. It takes the message of the amino acid order for proteins to the cytoplasm, where the protein will be built.
D. It stores in the nucleus the information a cell needs to make its proteins with the right orders of amino acids.
The function of RNA is that it takes the message of the amino acid order for proteins to the cytoplasm, where the protein will be built.
RNA is a type of nucleic acid that means ribonucleic acid.
RNA can either be of the following types;
Generally, RNA functions in living cells by taking the message of the amino acid order for proteins to the cytoplasm, where the protein will be built.
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Answer:
the answer is C It takes the message of the amino acid order for proteins to the cytoplasm, where the protein will be built.
Explanation:
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Sally inoculated 10 test tubes containing fresh minimal media supplemented with tryptophan with cells from this colony and grew the 10 cultures until the cells were dividing exponentially. She then plated 0.1 mL of each culture onto separate plates containing minimal media.
No colonies grew on 3 of the 10 plates. Colonies grew on the remaining seven plates, with one plate containing about 100 colonies and the other plates each containing between 1 and 15 colonies. What type of mutation allowed colonies to grow on these seven plates?
a) spontaneous forward mutation
b) spontaneous reverse mutation
c) induced forward mutation
d) induced reverse mutation
Answer:
b) spontaneous reverse mutation
Explanation:
Spontaneous mutations are produced by natural biological processes, while induced mutations are produced by mutagenic agents that trigger nucleotide errors in the DNA sequence. In the first phase of the experiment, Sally generated an induced mutation by using 5-bromouracil. The resulting strain required a constant supply of tryptophan to grow.
A reverse mutation restores the wild-type phenotype modified by a forward mutation, thereby reversing the phenotypic alteration to its original state. In a second step of the experiment, the colonies grew without the supply of tryptophan, thereby evidencing that the mutation was reversed in the original colony.
3.Explain why individuals in a population have different observable traits. Use your observation skills to find two examples of traits that you have inherited. These traits must be different from the ones that are discussed in the lesson.
Genes are composed of a sequence of nucleotides that code for a functional protein, straddled between a start and stop codon and are regulated by a promoter and regulator upstream. DNA, on the other hand, is a sequence of deoxyribonucleotides in an antiparallel double-helix chain. Genes are contained in the DNA double helix. Chromosomes are long DNA strands that are we packaged to into the small of the nucleus in a cell. The chromosomes contain packaging proteins such as histones in which DNA is wound to form nucleosomes.
This is because a population has different alleles (varying forms) of a gene distributed across the population in different frequencies. These alleles are passed down generation by parents to offspring. Each parent gives one allele to its offspring in diploid organisms. The difference in traits is because of this variation in the genotype of an organism. Additionally, how this genotype interacts with the environment to give the individual his phenotypic trait also give individuals varying traits.
An example of such a trait is my wavy hair, an observable trait I have because one of my parents has straight hair while the other has curly hair. I inherited an allele from both parents for hair texture. Since both allele exhibit incomplete dominance, I, therefore, have wavy hair.
Answer:
Carbon is versatile because it can form single, double, and triple bonds. It can also form chains, branched chains, and rings when connected to other carbon atoms.
Explanation:
Answer:
it can form single, double, and triple bonds. It can also form chains, branched chains, and rings when connected to other carbon atoms.
Explanation:
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Answer:
there are diffrent type of emperor penguins so they are considered a species
Explanation:
transports water and minerals
transports food
produces food through photosynthesis
Vascular tissues can provide support to the plants and also help in the transport of water, mineral and food. So, the correct options are A, B and C.
Vascular tissues mainly perform the function of supplying all the parts of the plant with water, minerals and food. there are two kinds of vascular tissues - xylem and phloem.
Xylem is the water-conducting vascular tissue. It conducts water from the roots of the plant to various other parts. In the xylem, the movement of water is unidirectional, which means it only conducts water from bottom to top and sometimes sideways
Phloem is the food-conducting vascular tissue of plants. It conducts water from leaves to other parts of the plant. In phloem, the movement of water is bidirectional, which means it conducts water from both directions. Xylem and phloem lie next to each other in a bundle called a vascular bundle.
Lycophytes are a group of seedless vascular plants which have a unique arrangement of their vascular tissues. In these plants, the lycophytes support the growth of plants.
Therefore, the correct options are A, B and C.
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Answer:
Explanation:
Xylem transports and stores water and water-soluble nutrients in vascular plants.
Phloem is responsible for transporting sugars, proteins, and other organic molecules in plants.
Vascular plants are able to grow higher than other plants due to the rigidity of xylem cells, which support the plant.