Answer:
True
Explanation:
The Drosophila like the mammals possess X and Y chromosomes but as in males in which the XX is female and XY is male, the sex In Drosophila is not determined by the presence of Y chromosomes as a male determining factor are present on the autosomes.
However, the Y chromosome is important for males as they are involved in the formation of the sperms therefore the presence of Y is important. In the given question if the allele is present ion the Y chromosome which can reduce the size therefore the allele is passed on to the males only ans no females.
Thus, true is the correct answer.
the fly is female (Bridges 1921, 1925). Thus, XO Drosophila are sterile males. In flies, the Y chromosome is not involved in determining sex. Rather, it contains genes active in forming sperm in adults.
Answer:
Carbohydrates are only function as a source of energy but also as an energy reserve.
Explanation:
The carbohydrates in glycolysis make up the energy currency that is ATP and in glycogenogenesis they make up glycogen, which is the energy reserve, that is why according to the state in which the metabolism or lifestyle of the person, carbohydrates can have different uses.
Answer:
E
Explanation:
in 1960 if agricultural yields increase it is modified into genetic of crops
The given question incomplete. However, the missing part is given below:
1.Which of the following are substrates of the ribonucleotide reductase reaction? 2.Which of the following are products of the ribonucleotide reductase reaction? 3.What is the best description of the reaction? 4. what is the ultimate electron donor? 5.Which of the following can directly donate an electron to ribonucleotide reductase?
Answer:
The correct answer is-
1. NDP (ADP, CDP, GDP, or TDP)
2. dNDP ( dADP. dCDP, dGDP, or dTDP)
3. Oxidation-reduction
4. NADPH
5. Thioredoxin
Explanation:
Ribonucleotide reductase reaction is catalyzed by the enzyme called ribonucleotide reductase which is a key enzyme that synthesizeS the deoxyribonucleotide from ribonucleotide, Deoxyribonucleotide is the precursor of DNA.
This reaction is an oxidation-reduction reaction that reduces all ribonucleotides ADP, CDP, GDP, or TDP to dADP. dCDP, dGDP, or dTDP. The ultimate electron donor in this oxidative-reductive reaction is NADPH however thioredoxin directly transfers an electron to ribonucleotide.
Daily values found on food labels assist people in determining whether a food contains a little or a lot of a nutrients. Food labels are found on any packaged food giving a lowdown on everything from calories to cholesterol. It is important to learn how to read and understand food labels as this helps in making healthier choices.
