Felsenstein zone in a phylogenetic tree refers to a region of tree space where,
Anonymous Poll
16%
maximum likelihood would be inconsistent
53%
lineages converge due to shared common ancestry
14%
outgroups relationship is influential
17%
maximum parsimony would be inconsistent
Join live for new lecture series of cell biology and cell signalling - lecture 1
https://www.youtube.com/live/ZwCDNL32Iys
https://www.youtube.com/live/ZwCDNL32Iys
YouTube
Basic of Cell Biology - CSIR NET Dec 2025 | Emotion Batch Season 6.0 | Lecture 01 | IFAS
Cell Biology and Cell Sginalling- CSIR NET Life Science lecture from IFAS Emotion Batch Season 6.0 covers applied aspects of cell biology for CSIR NET life science with PYQ, important topics, and questions. Join IFAS emotion batch lectures for JRF 2025 preparation.…
❤1
According to the classical Lotka-Volterra competition model, which of the following conditions allow for co-existence of two competing species?
Anonymous Poll
19%
both species are equally capable of inhibiting each other
58%
intraspecific competition of each species > interspecific competition
16%
intraspecific competition < interspecific competition
8%
there is no intraspecific competition in either species
❤1
Appendix masculina is found in
Anonymous Poll
32%
second abdominal appendages of male palaemon
40%
second maxillipede of male palaemon
23%
maxilla of both sexes of palaemon
5%
mandibles of male palaemon
The three domain classification of life proposed by Carl Woese divides life forms on the basis of
Anonymous Poll
16%
mitochondrial DNA and membrane structures
44%
ribosomal rRNA and protein sequences
24%
mitochondrial DNA and protein sequences
16%
presence of single or double membranes
👏1
Creationism is rejected by evolutionary biologists because
Anonymous Poll
24%
it offers no explanation about the origin of adaptation
39%
it suggests that all species descended from a common ancestor
21%
theologians have not settled on a date for the origin of life on earth
15%
supernatural events have not been shown to be very common
❤6
Co-existence of several species of birds in an area is possible under the following conditions
Anonymous Poll
13%
High niche overlap and high niche differentiation
47%
Low niche overlap and high niche differentiation
33%
High niche overlap and low niche differentiation
7%
Low niche overlap and low niche differentiation
A field biologist is sampling tree species in a forest area to estimate tree diversity. What method can be employed to decide if his sampling effort is adequate to estimate the tree diversity in the area?
Anonymous Poll
37%
Quadrat method of sampling
34%
Saturation using species accumulation curves
20%
Frequency distributions
9%
Jaccard's dissimilarity coefficient
❤8
A 16.2 m long wooden log has a uniform diameter of 2 m. To what length the log should be cut to obtain a piece of 22 m3 volume?
Anonymous Poll
13%
3.5 m
49%
7.0 m
31%
1.40 m
6%
2.20 m
A lucky man finds 6 pots of gold coins. He counts the coins in the first four pots to be 60, 30, 20 and 15, respectively. If there is a definite progression, what would be the numbers of coins in the next two pots?
Anonymous Poll
25%
10 and 5
30%
4 and 2
29%
15 and 15
16%
12 and 10
A large tank filled with water is to be emptied by removing half of the water present in it everyday. After how many days will there be closest to 10% water left in the tank?
Anonymous Poll
13%
One
35%
Two
43%
Three
9%
Four
n is a natural number. If n5 is odd, which of the following is true? (A) n is odd (B) n3 is odd (C) n4 is even
Anonymous Poll
18%
A only
28%
B only
20%
C only
34%
A and B only
Suppose you expand the product (x1+ y1) (x2 + y2).. .(x20 + Y20). How many terms will have only one x and rest y's?
Anonymous Poll
20%
1
29%
5
33%
10
18%
20
In the figure below the numbers of circles in the blank rows must be
Anonymous Poll
18%
12 and 20.
53%
13 and 20
20%
13 and 21
9%
10 and 11