Heredity and Evolution Test

Result

Heredity and Evolution Test - 20

Score
-
out of -
Rank
-
out of -

TIME Taken - -

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.

Weekly Quiz Competition

Question 1
1 / -0

............... is called father of genetics.

A
Mendel

B
Hook

C
Virchow

D
Strasburger
Solution
Gregor Mendel discovered the fundamental laws of inheritance by working on pea plants.
He deduced that genes come in pairs and are inherited as distinct units, one from each parent. Mendel tracked the segregation of parental genes and their appearance in the offspring as dominant or recessive traits.
He was the first person to figure out genetics well enough to be able to predict the results of crosses that he made.
Some of his findings included the ideas of dominant and recessive factors, independent assortment and segregation of alleles.
Question 2
1 / -0

The homologous organs have different functions and have ______ structures.

A
Similar

B
Different

C
Identical

D
Heterogenous

Solution

The homologous organs have different functions but have similar structures.
Organs such as wings of birds, seal's flipper, forelimb of a horse, and human arm are homologous as their basic anatomical structure is similar but their functions are different -
Wings of birds for flying.
Seal's flipper for swimming.
The human arm can perform various functions.

Question 3

1 / -0

Mendel studied seven contrasting characters for his breeding experiment with a pea. Which of the following characters did he not use?

Pod shape

Leaf shape

Plant height

Pod colour

Solution

The traits that Mendel studied are listed below:

Form of seed smooth (R) or wrinkled (r)
Colour of seed yellow (Y) or green (y)
Colour of flower purple (P) or white (p)
Form of pods inflated (I) or constricted (i)
Colour of pods green (G) or yellow (g)
Position of flowers axial (A) or terminal (a)
Height of plant tall (T) or dwarf (t)

So, the correct option is B.

Question 4

1 / -0

Heredity deals with the study of ______________.

Resemblances and differences between the parent and offspring

Resemblances between the parent and offspring

Differences between the parent and offspring

Inherited diseases only

Solution

In the process of sexual reproduction, the offspring produced resemble their parents yet have variations in traits. They are neither totally similar nor totally different from their parents. Hence, heredity deals with the study of both resemblances and differences of offspring with their parents.

So, the correct answer is option A.

Question 5

1 / -0

In Pisum sativum, the dwarfness of plant is a ________ character.

Dominant

Recessive

Codominant

Incomplete dominance

Solution

In Pisum sativum (garden pea), the height of the plant can be tall (dominant) or dwarf (recessive) with genotypes -
TT for tall and tt for dwarf.

Question 6

1 / -0

Whose efforts gave a clearer idea of heredity or inheritance of specific traits?

Lamarck's theory

Mendel's work on garden peas

Darwinism

Neo-Darwinism

Solution

Gregor Mendel's effort and work on garden pea (Pisum sativum) brought inheritance, genes, traits, etc. to the limelight. This is the reason why Gregor Mendel is also known as the 'Father of Genetics'.

Question 7

1 / -0

In Pisum sativum, _______ form of seed is dominant character.

Wrinkled

Round

Light

White

Solution

Mendel studied seven contrasting characters of pea plant (Pisum sativum). He observed that one character is dominant and other is recessive. So one such character was the shape of seeds, which could be round or wrinkled. Of these, round seed shape was the dominant trait.

So, correct answer is 'B'.

Question 8

1 / -0

Genes of today's world were Mendel's

Genes only

Factors

Chromosomes

None of the above

Solution

Mendel did not know about genes or discover genes, but he did speculate that there were two factors for each basic trait and that one factor was inherited from each parent.

We now know that Mendel's inheritance factors are 'genes', more specifically 'alleles', different variants of the same gene.

Question 9

1 / -0

What is the best explanation that aquatic life exists even below antarctic sheet of ice?

Evolution continues in inner core of earth.

Water is universal solvent.

Water expands and becomes lighter near 0$$^{0}$$C protecting underlying organisms.

All of the above.

Solution

Aquatic life exists even below the antarctic sheet of ice due to the presence of water that is due to expansion of water. Thus, the underlying organisms are protected.

Question 10

1 / -0

$${F_1}$$ hybrids contain:

Two different alleles of a contrasting pair of characters

Single allele of only one character

Two alleles of the same character

Single allele of same character

Solution

F$$_{1}$$ hybrids are heterozygous containing two different 'alleles' for a contrasting pair of characters.
For example,
P generation: TT (tall) X tt (dwarf)
Gametes: T t
F$$_{1}$$ generation: Tt (tall, heterozygous)
Thus, two different alleles (T, t) for two contrasting characters (tall and dwarf) are present in F$$_{1}$$ hybrid (Tt).

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Heredity and Evolution Test - 20

Result

Heredity and Evolution Test - 20

Score

-

Rank

-

SHARING IS CARING

Question 1

Mendel

Hook

Virchow

Strasburger

Solution

Question 2

Similar

Different

Identical

Heterogenous

Solution

Question 3

Pod shape

Leaf shape

Plant height

Pod colour

Solution

Question 4

Resemblances and differences between the parent and offspring

Resemblances between the parent and offspring

Differences between the parent and offspring

Inherited diseases only

Solution

Question 5

Dominant

Recessive

Codominant

Incomplete dominance

Solution

Question 6

Lamarck's theory

Mendel's work on garden peas

Darwinism

Neo-Darwinism

Solution

Question 7

Wrinkled

Round

Light

White

Solution

Question 8

Genes only

Factors

Chromosomes

None of the above

Solution

Question 9

Evolution continues in inner core of earth.

Water is universal solvent.

Water expands and becomes lighter near 0$$^{0}$$C protecting underlying organisms.

All of the above.

Solution

Question 10

Two different alleles of a contrasting pair of characters

Single allele of only one character

Two alleles of the same character

Single allele of same character

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.