Biology, 09.10.2021 19:20 huangjianhe135
Gen A có 1200 cặp nu và 2800 liên kết hidro. Gen A bị đột biến mất một cặp A-T trở thành alen a.
Hãy xác định:
a- Số nu mỗi loại của gen A.
b- Số nu mỗi loại của alen a.
Answers: 3
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In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid
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Biology, 21.06.2019 19:40
Asmall number of finches are removed randomly from the wild and placed in a protected bird area. they are given as much food as they need and have plenty of space. why would natural selection not occur in this population? a. there is no reason for genetic mutation to occur. b. the birds compete for limited resources, c. the population has not reached carrying capacity. d. there is no genetic variation in the finches.
Answers: 1
Biology, 22.06.2019 03:40
Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.
Answers: 2
Biology, 22.06.2019 06:20
The science for classifying and naming organisms is known as
Answers: 2
Gen A có 1200 cặp nu và 2800 liên kết hidro. Gen A bị đột biến mất một cặp A-T trở thành alen a.
H...
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