Quiz 09-January-2024

#1. Which of the following is not a characteristic of phylum chordata?

Pharyngeal slits

Postanal tail

Amniotic egg

Notochord

#2. A much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in a forest ecosystem because

aquatic herbivores are more efficient feeders.

terrestrial autotrophs are less efficient feeders.

aquatic autotrophs are small.

terrestrial autotrophs have more indigestible tissues.

#3. The total variance in a phenotypic character can be split into two components-genetic (V_G) and environmental (V_E). The heritability of a phenotypic trait can be expressed quantitatively as heritability coefficient (h²) which is calculated as h² =

V_G / (V_G– V_E)

V_E/V_G

V_G – V_E

V_G / (V_G+ V_E)

#4. Mendel crossed tall pea plants with dwarf ones. The F1 plants were all tall. When these F1 plants were selfed to produce F2 generation, he got a 3:1 tall to dwarf ratio in the offspring. What is the probability that out of three plants (of F2 generation) picked up at random two would be dwarf and one would be tall?

9/32

9/64

3/8

3/4

#5. A mother of blood group O has a group O child. The father could be of blood type

A or B

O only

A or B or O

AB only

#6. Name the ectothermic animal that can thermoregulate by behavioural means rather than by physiological means.

Flatworm in a pond

Tuna fish in the ocean

Lizard in a desert

Bumble bee in an orchard

#7. A mechanism that can cause a gene to move from one linkage group to another is

inversion

duplication

crossing over

translocation

#8. Imperfect fungi is a group represented by fungal species which have

lost its survival mechanism against harsh environments

unknown mechanisms of sexual reproduction

simple mycelia

unknown phylogenetic relationship

#9. The most commonly used method of estimating primary productivity of a pond involves measurement of the amount of

oxygen released

autotroph biomass

organic carbon

CO2 utilized

#10. Aneuploid females with only one X-chromosome is a characteristic of individuals with

Turner syndrome

cri du chat syndrome

Down syndrome

Klinefelter syndrome

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Quiz 09-January-2024

#1. Which of the following is not a characteristic of phylum chordata?

#2. A much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in a forest ecosystem because

#3. The total variance in a phenotypic character can be split into two components-genetic (V_G) and environmental (V_E). The heritability of a phenotypic trait can be expressed quantitatively as heritability coefficient (h²) which is calculated as h² =

#5. A mother of blood group O has a group O child. The father could be of blood type

#6. Name the ectothermic animal that can thermoregulate by behavioural means rather than by physiological means.

#7. A mechanism that can cause a gene to move from one linkage group to another is

#8. Imperfect fungi is a group represented by fungal species which have

#9. The most commonly used method of estimating primary productivity of a pond involves measurement of the amount of

#10. Aneuploid females with only one X-chromosome is a characteristic of individuals with

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Quiz 09-January-2024

#1. Which of the following is not a characteristic of phylum chordata?

#2. A much greater proportion of energy fixed by autotrophs is transferred to the herbivore level in the open ocean ecosystem than in a forest ecosystem because

#3. The total variance in a phenotypic character can be split into two components-genetic (VG) and environmental (VE). The heritability of a phenotypic trait can be expressed quantitatively as heritability coefficient (h2) which is calculated as h2 =

#5. A mother of blood group O has a group O child. The father could be of blood type

#6. Name the ectothermic animal that can thermoregulate by behavioural means rather than by physiological means.

#7. A mechanism that can cause a gene to move from one linkage group to another is

#8. Imperfect fungi is a group represented by fungal species which have

#9. The most commonly used method of estimating primary productivity of a pond involves measurement of the amount of

#10. Aneuploid females with only one X-chromosome is a characteristic of individuals with

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#3. The total variance in a phenotypic character can be split into two components-genetic (V_G) and environmental (V_E). The heritability of a phenotypic trait can be expressed quantitatively as heritability coefficient (h²) which is calculated as h² =