It can be concluded that both parents are also homozygous recessive for the gene
Answer:
Option C
Explanation:
Complete Question
Which of the following situations would pose a major difficulty for applying the biological species concept?
a) Two populations of sexually reproducing plants that can be bred easily in the same location under field conditions
b) Two populations of sexually reproducing insects that can be bred easily in the same location under field conditions
c) Five snail fossils taken from the same locality during a 400,000-year time span
d) Dimorphic mating pairs of birds
e) Monomorphic mating pairs of birds
Solution -
According to the biological species concept, two or more organisms that look alike does not mean that they belong to the same species. In order to consider that two organisms belong to the same species, it is essential for them to be able to interbreed or mate.
For example –
Western meadowlarks and Eastern meadowlarks look identical to one another but they do not interbreed with each other and hence they belong to different species.
Hence, option C is correct
Answer:
There is no change, the lac l gene is constitutively expressed, regardless of the presence of lactose.
Explanation:
Lacl gene codes for the lac repressor hence is always expressed to produce lac repressors which may or may not be bounded dependent on the presence of lactose. Lacl gene expression is not regulated, thus is constitutively expressed.
Answer:
because it helps alot
Explanation:
1.it protect you from sicks and diseases
2. it helps one feel comfortable
Answer:
a) No; b) Yes; c) Down
Explanation:
a) No: Rotenone inhibits the transfer of electrons from complex I to CoQ of the electron chain by inhibiting the oxidation of NADH to NAD.
b) Yes: Besides receiving electrons from complex I, FADH2 receives electrons from fatty acids and glycerol-3-phosphate. 2 ATPs are produced from FADH2.
c) Down: Less oxygen will be broken down (or consumed) to water, instead some of it will be converted to reactive oxygen species.
