Biology, 22.11.2021 18:00, rosemary909
Tế bào B chứa gen A có 3000 nu. bước vào lần phân bào chia cuối cùng của tế bào này 1/2 số tế bào con diễn ra đột biến mất đoạn NST tác động lên gen A. Hãy xác định số nu của gen A bị mất biết rằng môi trường nội bào đã cấp 39000 nu cho gen A qua các lần tự sao
Answers: 1
Biology, 22.06.2019 18:30, maleja2038
12) several teeth were found in an area of flat land covered with trees and plants. the teeth were examined by a paleontologist, and it was determined that the teeth came from a shark. they found many other shark teeth in this area. however, the people who discovered the teeth were puzzled, because there was no source of water near where the fossils were found. what is the paleontologist's best explanation for why the teeth were found in this area? a) sharks used to live on flat land. b) this area was once covered with salt water. c) this area was once covered with freshwater. d) someone buried the shark teeth deep in the ground.
Answers: 1
Biology, 23.06.2019 03:50, cstevenson
The pea aphid, a type of insect, contains light-capturing pigments in its exoskeleton. pea aphids gained the ability to synthesize these pigments from genes transferred from fungi. while pea aphids do not have chloroplasts or fix carbon, researchers have found that pea aphids with more pigments have higher levels of atp than those with fewer pigments. pea aphids also have been shown to increase production of atp when exposed to sunlight. based on this information, is the pea aphid a true autotroph? a. yes, because the pea aphid can store energy from the sun in atp molecules. b. no, because the pea aphid is unable to use the energy from sunlight. c. yes, because the pea aphid does not need to use energy from food. d. no, because the pea aphid does not store energy from the sun as sugars.
Answers: 2
Biology, 23.06.2019 04:10, gchippewa81
Lactic acid fermentation occurs in muscle cells when blank is in low supply
Answers: 2
Tế bào B chứa gen A có 3000 nu. bước vào lần phân bào chia cuối cùng của tế bào này 1/2 số tế bào co...
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