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abruzzese [7]
3 years ago
14

PLEASE HELP WITH QUESTIONS 2 AND 3 ONLY Thank u

Biology
1 answer:
anzhelika [568]3 years ago
4 0

Answer:

2. An important function of seed dormancy is delayed germination, which allows dispersal and prevents simultaneous germination of all seeds.

3. they have a higher chance of survival if the germinated when the time wasn't right they would die

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You are studying a population of snapdragon plants on Membata Island. In snapdragons, the dominant allele CR encodes red flowers
fredd [130]

Answer:

we will know that the allelic frequencies are for R 0.95 and r 0.05

Explanation:

We know that the population is in Hardy-Winberg equilibrium, we deduce the following formula:

p + q = 1

p2 + 2pq + q2 = 1

data

R: red flower allele

r: allele blor blanca

p would be equal to the allelic frequency R

q will be equal to the frequency allelic r

2p = RR

2q = rr

2pq = Rr

If there are 25 white flowers in 1000 plants, their frequency will be:

2pq frequency of the Rr genotype

white flower = 25/10000 = 0.0025 = rr = 2q = 0.0025

we deduce that q is equal to 0.05

we replace the data with the previous formula

p + q = 1

p = 1-0.05

we get as a result

  p = 0.95

if p = 0.95 and q = 0.05

we will know that the allelic frequencies are for R 0.95 and r 0.05

7 0
3 years ago
Read 2 more answers
What are all the possible sources of genetic variation in sexuaally repdoucing organisms?
Allushta [10]

Answer:

Mutation, Gene flow/Migration/Immigration of gene and Recombination

Explanation:

For any species there are majorly three sources of genetic variations –  

a) Mutation – This leads to change in the genetic code with in the DNA of an organism. Sometimes mutation does not produce any effect on the organism. Mutation can produce both positive and negative impact. Its effect is observed in long run as its rate is slow.

b) Recombination – When an organism undergoes sex, his/her genes recombine with the genes of mating partner. The rate of recombination is faster than the rate of mutation  

c) Gene flow /Migration/Immigration of gene – In this gene travel from one set of population to the other. The frequency of gene in the mixed population lies between the original population gene frequency and the migrated or donor population gene frequency

7 0
3 years ago
What volume units are greater than a liter?
arlik [135]
<span>A centimeter is 100 times smaller than one meter (so 1 meter = 100 centimeters). A dekaliter is 10 times larger than one liter (so 1 dekaliter = 10 liters). Here is a similar table that just shows the metric units of measurement for mass, along with their size relative to 1 gram (the base unit).</span>
7 0
3 years ago
1. Where are the Galapagos Islands located? (5 points)
jarptica [38.1K]

Answer:

1. Archipelago in Ecuador

2. Different beaks

3. He used Darwinism/ survival of the fittest / evolution to explain these adaptations. The birds on different islands adapted to varying, but specific food types.

4. mutation, gene flow, genetic drift, and natural selection.

Mutation creates new genetic variation in a gene pool.

Gene flow and genetic drift alter allele frequencies in a gene pool.

5. The finches have few predators / competition for food.

Explanation:

3 0
2 years ago
Read 2 more answers
What is the purpose of cellular respiration?
swat32
A. Break down sugars to use their energy directly
4 0
3 years ago
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