Self Studies
Self Studies
Self Studies
Self Studies
Selfstudy
Selfstudy

Evolution Test - 87

Result Self Studies

Evolution Test - 87
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    The Hardy-Weinbury principle cannot operate if
    Solution
    • The Hardy-Weinbury principle is applied to determine the frequency of alleles in the given population.
    • The principle helps in the determination of evolution. If the Hardy-Weinbury equilibrium is reached, there will be no evolution. There are certain conditions, which need to be met in order to allow evolution to occur.
    • There should be changes in the allele frequency but frequent mutations should not occur. This disturbs the allele frequency in the population and the principle cannot be applied.
    Thus, the correct answer is option B. 
  • Question 2
    1 / -0
    Fossils of early vascular plants have been discovered in the rocks of
    Solution
    The first fossil records of vascular plants, that is, land plants with vascular tissue, appeared in the Silurian period. The earliest known representatives of this group mostly from the northern hemisphere are placed in the genus cooksonia. So, the correct answer is " Silurian".
  • Question 3
    1 / -0
    Dinosaurs became extinct in
    Solution
    Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years. So, the correct answer is "Cretaceous".
  • Question 4
    1 / -0
    Frequency of an autosomal recessive lethal gene is $$0.4$$. Frequency of carrier in a population of $$200$$ individuals is?
    Solution
    The frequency of the recessive allele is $$q = 0.4$$ (given)
    Hence, $$p = 1-0, 4 = 0.6$$ (as p = 1- q)
    According to Hardy- Weinberg principle,  $$p^2$$ + $$2pq$$ + $$q^2$$ =$$1$$
    hence,       $$  p^2 = (0.6)^2 = 0.36$$
    $$q^2 = (0.4)^2 = 0.16$$
    $$2pq = 0.48$$
    since, $$2pq$$ is the frequency of hetrozygous carrier,
    = $$ 0.48 \times 200$$
    = $$ 96$$ Individuals
    So, the correct answer is$$ '96'$$.
  • Question 5
    1 / -0
    In which period of paleozoic era first vertebrate appeared 
    Solution
    The Paleozoic Era which ran from about 542 million years ago to 251 million years ago, was a time of great change on earth. The era began with the breakup of one supercontinent and the formation of another. Plants became widespread and the first vertebrate animals colonized the land.
    So, the correct answer is "Ordovician".
  • Question 6
    1 / -0
    Long neck of camels is due to:
    Solution
    The camel has a long neck due to the presence of extra bony plates between two vertebrae. Their long necks are excellent adaptations so as to help them reach out for their food and water sources without bending their body or legs much.
    So the correct answer is 'Development of extra bony plates between successive vertebrae'.
  • Question 7
    1 / -0
    Rhynia belongs to
    Solution
    Rhynia is a single-species genus of Devonian vascular plants. Rhynia gwynne-vaughanii was the sporophyte generation of a vascular, axial, free-sporing diplohaplontic embryophyte land plant of the Lower Devonian that had anatomical features more advanced than those of the bryophytes. 
    So, the correct answer is " Devonian".
  • Question 8
    1 / -0
    Members of hominidae are
    Solution
    A hominid is any member of the primate family Hominidae. Recent classification schemes for the apes place extinct and extant humans, chimpanzees, gorillas, and orangutans in Hominidae and thus technically hominid refers to members of these groups. 
    So, the correct answer is " Man, Chimpanzee, Gorilla".
  • Question 9
    1 / -0
    Which animal dominated in paleozoic era?
    Solution
    An illustrated geological timeline for the Palaeozoic era. which includes the  However, the reptiles become the dominant land fauna, such as Dimetrodon which is 248 million years ago, many groups of animals including the Goniatites. 
    So, the correct answer is "Reptiles".
  • Question 10
    1 / -0
    Mesozoic era was dominated by
    Solution
    The Mesozoic Era lasted more than 180 million years. During this time, many modern forms of plants, invertebrates and fishes evolved. On land, dinosaurs were the dominant animals, while the oceans were populated by large marine reptiles and Pterosaurs ruled the air.
    So, the correct answer is "Dinosaurs".
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now