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
Mashutka [201]
3 years ago
7

In northern Canada a population of rabbits was predominantly white in color. The allele for white color is recessive while the a

llele for gray color is dominant. Over the last several decades, the average annual temperature of this area has increased and the long-term deposits of ice and snow have become scarce. This is an example of directional selection which tends to
A) decrease genetic diversity.
B) increase the frequency of a previously scarce allele.
C) decrease the frequency of a previously scarce allele.
D) increase the frequency of two previously rare alleles.
Biology
1 answer:
polet [3.4K]3 years ago
6 0

Answer:

B

Explanation:

Directional selection tends to evolve towards one specific trait. In this example, white rabbits no longer have a competitive advantage because of disappearing snow. This means they are more easily spotted by predators, resulting in reduced fitness and less chance they will live to reproductive age and pass their recessive white alleles on.

Natural selection will favor the gray colour allele, increasing the frequency oft this previously rare allele.

You might be interested in
When assigning a scientific name to an organism,
ziro4ka [17]

Answer:

b

Explanation:

7 0
1 year ago
Read 2 more answers
The nucleus contains the cells genetic material in the form of dna. dna is organized into our chromosomes, which are made up of
aliya0001 [1]
The DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones
7 0
3 years ago
Read 2 more answers
Which phase does a new nuclear membrane develop
Salsk061 [2.6K]
Telephase.

Hope this helps ♡
4 0
3 years ago
Read 2 more answers
Musculo que tiene las características tanto de musculo esquelético como de musculo liso. Se encuentra en el corazón y sus contra
Andrei [34K]

Answer:

músculo cardíaco

Explanation:

Los 3 tipos de tejido muscular son 1-músculo cardíaco o miocardio (involuntario), 2-músculo liso (involuntario) y 3-músculo esquelético (voluntario). Las células del músculo cardíaco, las cuales son conocidas como 'miocardiocitos', poseen una apariencia estriada y forman la pared del corazón. Los miocardiocitos son alargados, ramificados, y poseen un núcleo central (son células uninucleadas, a diferencia de las células del músculo esquelético, las cuales son multinucleadas). Además, los micardicitos son más cortos (80 a 100 µm) y más anchos (aprox. 15 µm) que las células del músculo esquelético. Los miocardiocitos presentan uniones especializadas conocidas como discos intercalares, los cuales son un tipo de complejo de unión entre los límites de dos cardiomiocitos. En el citoplasma de los cardiomiocitos se encuentran las miofibrillas, las cuales son estructuras contráctililes que les confieren a las células musculares sus propiedades características de contracción y de elasticidad. En estas células (cardiomiocitos) las miofibrillas se disponen de manera longitudininal con un patrón estriado.

7 0
3 years ago
What cell components did you learn that are most likely to occur only in plants? Tell me about two of them and their functions.
jolli1 [7]
1) Chloroplast
-converts solar energy into food for the plant.
2) Cell Wall
-provides protection and structure.
5 0
3 years ago
Other questions:
  • A geocentric system is _____. Earth-centered Moon-centered Sun-centered Milky Way-centered
    5·2 answers
  • Which property of water allows blood to aid in the transportation of nutrients and gases throughout the body?
    12·1 answer
  • Is a pond organism multicellular or unicellular
    7·1 answer
  • A description of natural events that has been proven to be true time after time, without exception.
    8·1 answer
  • Could the mother or the father (or both be "responsible" for this aneuploid condition in a child? explain your choice
    7·1 answer
  • A result of the Battle of Trenton was that:
    7·1 answer
  • For aerobic respiration, a variety of substances must be in a state of flux across the inner mitochondrial membrane. Assuming a
    6·1 answer
  • What is the remaining ratio of alleles if my total is 140 and 65.8% are red and 18.2% are blue?
    12·2 answers
  • The light colored rock pocket mice in New Mexico blend in with the sandy soil of the area, but on darker lava flow, the light co
    15·2 answers
  • Which graph represents selection that may lead to reduced variation in a population?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!