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
olya-2409 [2.1K]
3 years ago
13

Buffalo have a somatic chromosome number of 60. Hybrids produced by crossing a buffalo and grizzly bear are called gruffalo, are

sterile, and have many characteristics intermediate between the two parental species. If a gruffalo has 67 chromosomes, what is the somatic chromosome number of a grizzly bear?a. 42.b. 37.c. 62.d. 74.e. 30.
Biology
1 answer:
Keith_Richards [23]3 years ago
5 0

Answer:

37

Explanation:

Since the Gruffalo has a somatic chromosome number of 67 and the Buffalo has a somatic chromosome number of 60, we may infer that seven chromosomes from the Grizzly were not able to pair up with the chromosomes of the Buffalo. Checking the options, the only choice that has a suitable number is b. 37 chromosomes. If this is true, then the remaining 30 chromosomes were able to pair up.

You might be interested in
Rocky mountain juniper (juniperus scopulorum) and one-seeded juniper (j. monosperma) have overlapping ranges. pollen grains (whi
bixtya [17]

Answer:

Mechanical isolation

Explanation:

mechanical isolation is a form of prezygotic reproductive barrier, whereby similar species organisms become isolated and unable to successfully interbreed with each other to form zygote, as a result of incompatibility of their reproductive organ or structure, which prevents them from copulating. As a result of this, both species become separated as there is no gene flow between both.

The two species of juniper can be said to be kept separate by <em>mechanical isolation</em>, due to the differences and incompatibility of their reproductive structure.

8 0
3 years ago
Read 2 more answers
Darwin’s theory of evolution is based on
Marizza181 [45]

Answer:

Darwinism is a theory of biological evolution developed by the English naturalist Charles Darwin (1809–1882) and others, stating that all species of organisms arise and develop through the natural selection of small, inherited variations that increase the individual's ability to compete, survive, and reproduce.

Explanation:

3 0
3 years ago
Temperature regulatory apparatus of the mammal include the following pairs
Kryger [21]
The correct answer is D
3 0
3 years ago
Read 2 more answers
Memory cells may take the form of B cells. T cytotoxic cells. T helper cells. All of the choices are correct.
topjm [15]

Answer:

Having considered how an appropriate primary immune response is mounted to pathogens in both the peripheral lymphoid system and the mucosa-associated lymphoid tissues, we now turn to immunological memory, which is a feature of both compartments. Perhaps the most important consequence of an adaptive immune response is the establishment of a state of immunological memory. Immunological memory is the ability of the immune system to respond more rapidly and effectively to pathogens that have been encountered previously, and reflects the preexistence of a clonally expanded population of antigen-specific lymphocytes. Memory responses, which are called secondary, tertiary, and so on, depending on the number of exposures to antigen, also differ qualitatively from primary responses. This is particularly clear in the case of the antibody response, where the characteristics of antibodies produced in secondary and subsequent responses are distinct from those produced in the primary response to the same antigen. Memory T-cell responses have been harder to study, but can also be distinguished from the responses of naive or effector T cells. The principal focus of this section will be the altered character of memory responses, although we will also discuss emerging explanations of how immunological memory persists after exposure to antigen. A long-standing debate about whether specific memory is maintained by distinct populations of long-lived memory cells that can persist without residual antigen, or by lymphocytes that are under perpetual stimulation by residual antigen, appears to have been settled in favor of the former hypothesis.

6 0
2 years ago
Shortly after rna polymerase begins to transcribe a pre-mrna, a ____________ is added.
Ber [7]

Answer: 5 prime cap

Shortly after RNA polymerase begins to transcribe a pre-mRNA, a 5 prime cap is added.

, Hope this helps :)

Have a great day!!

3 0
3 years ago
Other questions:
  • 1. which of these is an environmental effect of building dams
    6·2 answers
  • The by-products of cellular respiration include?
    14·1 answer
  • Please help will mark the brainliest
    5·1 answer
  • Genes that are linked together _____.
    6·1 answer
  • Which numbered arrow represents the promoter for RNA II. RNA II serves as the primer for DNA synthesis for plasmid replication.
    14·1 answer
  • Discuss the implications of neuroplasticity on the promise of treatments for injuries or conditions. Also, because the brain cha
    10·1 answer
  • If the amount if algae in the ocean decreases by 50% the population of its consumers, goby fish will?
    11·1 answer
  • 11. Fossil fuels are considered nonrenewable resources because of -
    9·2 answers
  • A hydraulic system uses a(n) ____________________ to transmit pressure.
    9·2 answers
  • In escherichia coli, the c ring of atp synthase is composed of 12 c subunits. For one fully productive revolution of this ring,
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!