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what are some examples of phenotypical characteristics that present two or more varieties and of phenotypical features that do not vary in relation
what are the situations in which the environment can change the genotype of an individual what is the condition for this type of change to be
are environmental phenotypical changes transmitted to the offspringchanges caused on phenotypes by the environment are not transmitted to the
does the environment exert an influence on the phenotypea phenotype may be changed compared to the original situation conditioned by its genotype by
what is a genotype what is the difference between genotype and phenotypegenotype is the genes dna nucleotide sequences have in the chromosomes of an
what is a phenotypea phenotype is each observable characteristic of a living being conditioned by its genes some phenotypes may be changed by
what are alleles of a genediploid individuals have paired chromosomes for instance in humans there are 23 pairs of chromosomes totalling 46
how is the concept of chromosome related to the concept of the genea chromosome is a dna moleculea chromosome may have several dissimilar genes and
is a gene a triplet of consecutive dna nucleotidesa gene is not a triplet of dna nucleotides with their respective nitrogen-containing bases like aag
what is the critical photoperiod how can the critical photoperiod relate to flowering be experimentally determinedthe critical photoperiod is the
how does the photoperiodism affect the flowering of some plantsflowering is a typical and simple to observe instance of photoperiodism most flowering
what are the plant organs responsible for the perception of light variation what is the pigment responsible for this perceptionleaves are mostly
what is photoperiodism photoperiodism is the biological response shown by some living beings to their daily time of light exposure
what is photoperiodphotoperiod is the daily time period of light exposure of a living being the photoperiod might be vary according to the period of
what is thigmotropismthigmotropism is the movement or growth of the plant in response to mechanical stimuli touch or physical contact as when a plant
what are the types of plant geotropisms why do the stem and the root present opposite geotropismsthe parts of geotropisms are the positive geotropism
what is phototropismphototropism is the movement of plant structures in response to light phototropism might be positive or negative positive
to which direction does the growth of one side of a stem branch or root induce the structure to curvewhile one side of a stem branch or root grows
what is the plant hormone remarkable for stimulating flowering and fruit ripening what are the uses and practical inconveniences of that hormonethe
what are cytokinins where are they madecytokinins are phytohormones active in the promotion of cellular division they slow down the aging of tissues
what are gibberellins where are they produced gibberellins are plant hormones that stimulate plant growth flowering and fruit formation also
what is the phenomenon of apical dominance in plants how can it be artificially eliminatedapical dominance is the phenomenon by which high over the
what are synthetic auxins and what are their usessynthetic auxins like indolebutyric acid iba and naphthalenic acid naa are substances same to iaa a
what are plant hormonesplant hormones also known as phytohormones are substances that control the embryonic development and the growth of the adult
what is tree girdling what happens to a plant when that girdle is removed from the stem below the branches malpighis girdling or tree girdling is the