1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
finlep [7]
2 years ago
11

A population of water snakes is found on an island in Lake Erie. Some of the snakes are banded and some are unbanded; banding is

caused by an autosomal allele that is recessive to an allele for no bands. The frequency of banded snakes on the island is 0.4, whereas the frequency of banded snakes on the mainland is 0.81. One summer, a large number of snakes migrate from the mainland to the island. After this migration, 20% of the island population consists of snakes that came from the mainland.
a. If both the mainland population and the island population are assumed to be in Hardy-Weinberg equilibrium for the alleles that affect banding, what is the frequency of the allele for bands on the island and on the mainland before migration?
b. After migration has taken place, what is the frequency of the banded allele on the island?
Biology
1 answer:
kotegsom [21]2 years ago
7 0

Answer:

A.the frequency of the ringed allele on the island before migration is: 0,9

B. the frequency of the ringed allele on the island after migration is: 0.684

Explanation:

A.

when the bands are recessive and there are no dominant bands

Step 1: Calculate the frequency of ringed snakes (q2) on the island before migration.

as a result, q2 = 0.4; q = √q2 = √0.4 = 0.63.

The allelic frequency of ringed snakes on the island before migration is 0.63

we then search on dry land, q2 = 0.81; q = √0.81 = 0.9

B. thus, after migration, the frequency of the ringed allele on the island is:

Step 1

The frequency of the ringed allele on the island after migration = qnew = m * q migrants + (1-m) * qold

we replace with the data:

M = 20% = 20/100 = 0.2

qmigrants = 0.9 (on the island before migration)

qold = 0.63 (on dry land)

so:

qnew = 0.2 X 0.9 + 0.8 X 0.63 = 0.18 + 0.504 = 0.684

You might be interested in
The 1st organism in a food chain must always be what type of organism
mr_godi [17]
The 1st type is called autotrphs. Primary consumers are animals that eat primary producers; they are also called herbivores
5 0
3 years ago
What are the activity of a cambial ring??​
QveST [7]

<h2>Ur Answer:-</h2>

The cambial ring becomes active and starts cutting off new cells; both on the inner and the outer sides. The cells which are cut off towards the pith mature into secondary xylem. The cells which are cut off towards the periphery mature into secondary phloem.

<h2>Hope it helps uh!</h2>
4 0
2 years ago
The R horizon is made of
Komok [63]

Answer:

maryland

Explanation:

sdsfftgthgnhjm668i8jh

3 0
3 years ago
The diploid generation of the plant life cycle always _____. See Concept 29.2 (Page 625) The diploid generation of the plant lif
marissa [1.9K]

The diploid generation of the plant life cycle always PRODUCE SPORES. See Concept 29.2 (Page 625) The diploid generation of the plant life cycle always PRODUCE SPORES. See Concept 29.2 (Page 625) is larger and more conspicuous than the haploid stage produces eggs and sperm is called the gametophyte develops from a spore produces spores

5 0
3 years ago
What are the Independent (IV) and the Dependent Variable (DV) in this hypothesis?
Alexeev081 [22]

Answer:

the dependent is how fast the coronavirus spreads. independent is whether the person works in a public space or not

4 0
2 years ago
Other questions:
  • Name a few plant dieases caused by bacteria
    5·2 answers
  • Which type of space probe is designed to move around in the surface of a moon or planet
    15·1 answer
  • Difference in the classification level of plants and animals?
    8·1 answer
  • How are viruses able to infect cells?
    15·1 answer
  • Describe how a protein is coded for and made
    14·2 answers
  • Atoms that have gained or lost electrons are called _____. molecules compounds elements ions
    6·2 answers
  • Why do species revolve during adaptive radiation
    15·1 answer
  • The deficiency or absence of any environmental factors that can decrease the rate or speed of metabolic reaction is called
    12·2 answers
  • All eubacteria and archaebacteria are prokaryotes. Living organisms that are made up of cells that have nucleus are called _
    14·1 answer
  • What is a mixture and why is the air we breathe a mixture?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!