B
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Answer:
(a) Gg × Gg; (b) genotypic = 1:2:1, phenotypic = 3:1
Explanation:
a) A cross between two gray seeded plants produces progeny with gray and white seeds in 3:1 ratio (302:98=3:1). This means that the parent plants are heterozygous and each has at least one recessive allele. If the allele "G" is responsible for gray seed and the allele "g" imparts white color to the seeds, the genotype of the heterozygous parents would be "Gg".
b) A cross between two heterozygous gray seeded parents would produce progeny in following ratio:
Genotype ratio= 1 GG: 2 Gg: 1 gg
Phenotype ratio= 3 Gray: 1 white
Answer: C) Phosphate groups, guanine and cytosine.
DNA ( deoxyribose nucleic acid) and RNA ( ribonucleic acid) are considered as the genetic material of different organisms.
DNA contains dNTP ( deoxyribonucleoside triphosphate) as monomeric unit, whereas RNA contains NTP ( ribonucleoside triphosphate) as the monomer. The nitrogenous base, a pentose sugar and phosphate group are present in both DNA and RNA.
DNA contains the following nitrogenous bases- Adenine (A), Guanine (G), Thymine (T), and Cytosine (C), whereas RNA contains Uracil (U) in place of Thymine.
Guanine and Cytosine are the nitrogenous bases found in both DNA as well as RNA. Thus, in the given question, answer C) is correct.
Answer:
height of the ball when it bounces
Explanation:
<em>The dependent variable in the experiment would be </em><em>the height attained by the bouncing ball after dropping it.</em>
<u>The dependent variable during research or an experiment is the actual variable being measured by the researcher. It is the variable whose value is dependent on other variables in an experiment.</u>
<em>In this case, the height at which the ball is dropped would determine the height reached by the ball as it bounces. Hence, the height at which the ball is dropped is referred to as the independent variable while the height reached when it bounces is the dependent variable.</em>