Considering the experimental setup to test the hypothesis that the amount of sunlight poppies are exposed to influences their growth rate, it can be concluded that the setup is not a better setup to test the hypothesis because other variables like water and amount of fertilizer are not kept constant for all the test groups.
What is a hypothesis?A hypothesis is a theory put up to explain a phenomenon.
A hypothesis must be testable according to the scientific method for it to be considered a scientific hypothesis.
Scientists typically build their scientific ideas on prior observations that cannot be adequately explained by the current body of knowledge.
The process of testing out a hypothesis is through experiments.
When testing a hypothesis by means of experiments, only the factor or variable to be tested is varied, whereas other variables are kept constant.
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Define of DNA sequencing in the simplest form
Answer:
DNA sequencing is the process of determining the order of the four bases (adenine, thymine, guanine, and cytosine) in a molecule of DNA.
Explanation:
when on enzyme is subject to excess heat
Answer:
Enzymes rely on molecular movement and collisions with the compounds they are meant to bind with -- called substrates -- so they can speed up certain chemical reactions. Increases in temperature increase molecular activity, and can result in a higher rate of collisions between enzymes and substrates. If the temperature rises too high, however, the enzymes could become denatured, and the positive effects of the temperature increase could be nullified.
Explanation:
Many enzymes lose function at lower and higher temperatures. At higher temperatures, an enzyme's shape deteriorates. Only when the temperature comes back to normal does the enzyme regain its shape and normal activity unless the temperature was so high that it caused irreversible damage.
A student completed a lab report. Which correctly describes the difference between the “Question” and “Hypothesis” sections of her report?
A. “Question” states what she is asking, and “Hypothesis” states the result of her experiment.
B. “Question” states what she is asking, and “Hypothesis” states what she thinks the answer to that question is in “if . . . then . . . because” format.
C. “Question” describes what she is trying to find out, and "Hypothesis" states the procedures and methods of data collection.
D. “Question” describes what she is trying to find out, and “Hypothesis” states any additional information or prior knowledge about the question.
Answer:
B
Explanation:
Question” states what she is asking, and “Hypothesis” states what she thinks the answer to that question is in “if . . . then . . . because” format.
Which of the following statement best describes the similarity between sexual and asexual reproduction?
Answer:
B. Both pass on genetic material to the offspring.
Asexual reproduction is a process in which organisms produce offspring without the involvement of meiosis and fertilization. The offspring produced through asexual reproduction are genetically identical to the parent organism. In contrast, sexual reproduction is a process in which organisms produce offspring through the fusion of genetic material from two parent organisms. The offspring produced through sexual reproduction are genetically diverse as they inherit a combination of genetic material from both parents. Both asexual and sexual reproduction pass on genetic material to the offspring. However, only sexual reproduction leads to genetic diversity in the offspring.
What is the difference between a dominant color allele and a recessive color allele found in pea plants? Responses Both alleles code for proteins that produce pigments. The pigments produced by a recessive color allele are white. A recessive color allele codes for proteins that produce pigments. A dominant allele does not code for those proteins. A dominant color allele codes for proteins that are involved in the production of pigments. A recessive color allele does not produce a working version of these proteins. Both alleles cannot code for any proteins. Purple is the natural color of plant petals when no other factors are involved.
The differences between a dominant color allele and a recessive color allele found in pea plants is based on the facts that 5. A dominant color allele codes for proteins that are involved in the production of pigments and 6. A recessive color allele does not produce a working version of these proteins.
What are dominant and recessive alleles in a given locus?The expression dominant and recessive allele for a given locus make reference to the presence of one alle called dominant which masks the expression of the recessive allele in heterozygous individuals, which is only expressed in homozygous recessive individuals.
Therefore, with this data, we can see dominant and recessive alleles in a given locus have a distinct effect on the phenotype in the sense the recessive allele does not produce the required protein in presence of the dominant allele.
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A child uses her hand to measure the width of a tabletop. Her hand has a width of 8.3 cm at its widest point, and she finds the tabletop to be 15.5 hands wide.
Answer:
see below
Explanation:
To find the width of the tabletop in cm, we can multiply the number of hands by the width of one hand.
Width of tabletop = 15.5 hands x 8.3 cm/hand
Width of tabletop = 129.45 cm
So, the width of the tabletop is 129.45 cm.
Thalassemia is a hereditary disease of the blood of humans resulting in anemia. Severe anemia (Thalassemia major) is found in homozygous (TMTM) and a milder form (Thalassemia minor) is found in heterozygous (TMTN). Normal individuals are homozygous (TNTN). If all individuals of Thalassaemia major die before sexual maturity, what fraction of the adult F₁ from marriages of minors with minors would be expected to be anemic?
Answer:
If all individuals with Thalassemia major die before sexual maturity, the fraction of the adult F1 from marriages of minors with minors that would be expected to be anemic would be 0.25. This is because, in such a marriage, each parent is a carrier of the trait (TMTN) and the offspring of such a marriage would thus be expected to be in a 1:2:1 ratio of normal individuals (TNTN): carriers (TMTN): individuals with Thalassemia major (TMTM). Since those individuals with Thalassemia major would not have survived to adulthood, the fraction of anemic individuals would be 0.25 (1/4).
Explanation:
If all individuals of Thalassemia major die before sexual maturity, the expected fraction of anemic individuals in the F1 generation of marriages between Thalassemia minors would be 0.25, or 25%. This is because, when two Thalassemia minors are married, the genotypes of their offspring will be 25% TT (Thalassemia major), 50% TN (Thalassemia minor), and 25% NN (normal individuals). Since only the TT individuals will be anemic, 25% of the offspring will be anemic.
