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Vika [28.1K]
3 years ago
7

What did Watson and Crick’s model of DNA show?

Biology
2 answers:
mojhsa [17]3 years ago
7 0

A is most definitely the answer

sergejj [24]3 years ago
5 0
Answer
The option A is correct, becuse their model shiw tha DNA is composed of two double strand of nucleotide which are twisted around each other and run in antiparallel direction. the phisphate group and pentose sugar are present on outside, while nitrogenous base is present on inside.
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Three phases of interphase and describe an activity unique to each phase
hodyreva [135]
G1--- the cell is growing up feeding for 1

S-- the cell starts to repucate the chromosomes

G2--- the cell is growing for 2

6 0
3 years ago
1. If a pea plant’s alleles for height are tt, what is true of its parents?
omeli [17]
1. C) Both parents contributed a recessive allele
The offspring is homozygous for the recessive allele, which means it has two copies of it. Because each parent contributes one copy of the gene, this means that both parents contributed the recessive allele.

2. D) The offspring can be tall or short

The first cross between TT and tt will yield an F1 generation with the genotype Tt. When this generation is self-pollinated, the cross may result in the following genotypes:
TT, Tt, tt
Which means that the offspring can be tall or short.
4 0
3 years ago
Which if the following is the definition for speciation
s344n2d4d5 [400]
The definition of speciation is the formation of new and distinct species in the course of evolution.
4 0
3 years ago
Read 2 more answers
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hodyreva [135]

Answer: Increase in species numbers and diversity

Explanation:

Upwelling is an oceanographic phenomena in which the water from the bottom layers of the ocean usually above the seafloor get displaced and reach upto the surface layers with the effect of wind currents. The water carries away along with it the nutrients and the organic matter to the surface layers which allows the efficient growth of plant and planktonic diversity which favors the growth of sea animals like fishes and others. Hence, by this way the species diversity and numbers increases by the process of upwelling.

4 0
3 years ago
Name the following phases of the cell cycle. Note: The pictures are in no particular order.
natita [175]

Answer:

Explanation:

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In order, they would be 2, 4, 3, 1, 5.

4 0
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