Tag: similarities and dissimilarities in organisms

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Multiple choice botany mendel's law of inheritance genetics terminology similarities and dissimilarities in organisms introduction to genetics features of human body and sign language

What is the correct sequence from least complex to most complex in terms of the amount of information they carry?

I. Chromosomes
II. Base pair
III. Codon
IV. Gene

  1. I $\rightarrow $ II$\rightarrow $ III $\rightarrow $ IV
  2. II $\rightarrow $ III$\rightarrow $ I $\rightarrow $ IV
  3. III $\rightarrow $ II $\rightarrow $ I $\rightarrow $ IV
  4. II $\rightarrow $ III $\rightarrow $ IV $\rightarrow $ I
  5. II $\rightarrow $ IV $\rightarrow $ II $\rightarrow $ I
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

A base pair (II) carries least information as at least three bases together (base triplet) make a codon (III) which in turn code for an amino acid. Genes (IV) are the stretch of DNA and each gene codes for a particular protein. Many genes are linearly arranged on a chromosome which means that chromosomes carry information for many proteins.

Therefore, the correct answer is option D.

Multiple choice botany mendel's law of inheritance genetics terminology similarities and dissimilarities in organisms introduction to genetics features of human body and sign language

When a cross is made between a tall plant with yellow seeds (Tt Yy) and a tall plant with green seeds (Tt yy), what is true regarding the proportions of phenotypes of the offsprings in F1 generation?
Proportion of Tall and Green         Proportion of Dwarf and Green 

  1. $\dfrac{3}{8}$ $\dfrac{1}{8}$
  2. $\dfrac{2}{8}$ $\dfrac{1}{8}$
  3. $\dfrac{1}{8}$ $\dfrac{3}{8}$
  4. $\dfrac{2}{8}$ $\dfrac{2}{8}$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Crossing TtYy x Ttyy: The Tt x Tt cross gives 3/4 Tall and 1/4 Dwarf. The Yy x yy cross gives 1/2 Yellow and 1/2 Green. Tall and Green = (3/4) * (1/2) = 3/8. Dwarf and Green = (1/4) * (1/2) = 1/8.

Multiple choice botany mendel's law of inheritance genetics terminology similarities and dissimilarities in organisms introduction to genetics features of human body and sign language

A tall plant was grown in nutrient deficient soil and remained dwarf. When it is crossed with dwarf plant then

  1. all hybrid plants are dwarf

  2. all hybrid plants are tall

  3. depend upon genotype of a tall plant

  4. 75% tall and 25% dwarf
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A tall plant was grown in nutrient deficient soil and remained dwarf .So , after crossed with dwarf plant then all hybrid plants are tall. Hybrid genotype is Tt.

Hence, correct option is B. 

Multiple choice botany mendel's law of inheritance genetics terminology similarities and dissimilarities in organisms introduction to genetics features of human body and sign language

In Drosophila, the allele for a normal grey body colour G is dominant to ebony body g. The following table summarises the results of several crosses.


S. No. Cross Result
1. strain 1*gg all wild-type
2. strain 2*gg 1 wild type: 1 ebony
3. strain 3*gg all ebony
4. strain 4*Gg 3 wild type:1 ebony


Which strain both have the genotype Gg?

  1. 1 and 3

  2. 1 and 4

  3. 2 and 3

  4. 2 and 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The first cross between strain 1 and gg result in all wild-type offspring, it must have genotype GG. As in that case, all offspring will have Gg genotype hence showing wild-type character. Similarly, strain 3 must have genotype gg resulting in all ebony bodied offspring.


While, strain 2 and 4 have genotype Gg. 

Cross for strain 4*Gg can be shown as:-

 Gamete type  G  g
 G  GG  Gg
 g  Gg  gg

Here, it can be seen that offspring have 3 wild type:1 ebony as grey body ( wild type ) colour G is dominant. 


Cross for strain 2*gg can be shown as:-
| Gamete type |  g |  g | | --- | --- | --- | |  G |  Gg |  Gg | |  g |  gg |  gg | Here, it can be seen that offspring have 1 wild type: 1 ebony as grey body ( wild type ) colour G is dominant. So, the correct option is '2 and 4'.

Multiple choice evs likes and dislikes genetics terminology similarities and dissimilarities in organisms features of human body and sign language

What is/are the main difference between human and animal?

  1. Height

  2. Weight

  3. Brain

  4. All of above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
  • The main difference between animals and humans is the brain.
  • The main function of the brain is to think and to decide what is right and what is wrong. 
  • This is the only difference by which humans can think and take decisions.
    Hence, the correct answer is C.
Multiple choice evs likes and dislikes genetics terminology similarities and dissimilarities in organisms features of human body and sign language

Which of the following human feature can be different?

  1. Height

  2. Weight

  3. Knowledge

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
Human being can be different from each in various tangible aspects like height, weight, color of the eye and non tangible aspects like knowledge, art etc
So, the correct answer is 'All of above'
Multiple choice evs likes and dislikes genetics terminology similarities and dissimilarities in organisms features of human body and sign language

If a person lacks one sense organ the brain concentrates on remaining sense organs and these sense organs become more sensitive.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • If one sense is lost, the areas of the brain normally devoted to handling that sensory information do not go unused they get rewired and put to work processing other senses. 
  • A new study provides evidence of this rewiring in the brains of deaf people. The brain adapts to the loss by giving itself a makeover. Hence, If a person lacks one sense organ the brain concentrates on remaining sense organs and these sense organs become more sensitive.
So, the correct answer is 'true'.

Multiple choice evs likes and dislikes genetics terminology similarities and dissimilarities in organisms features of human body and sign language

Which of the following is/are the special feature or knowledge of humans?

  1. Singing

  2. Painting

  3. Writing

  4. All of above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Singing, painting and writing are the special features or knowledge of human. These all are the different features of human. Some are good in painting because he/she earns the knowledge of painting. Same like painting, singing and writing are also different features for which you have to earn the knowledge of same.

Multiple choice evs likes and dislikes genetics terminology similarities and dissimilarities in organisms features of human body and sign language

Which of the following human features can be same?

  1. Height

  2. Weight

  3. A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

  • BMI takes into account both height and weight but not body composition.
  • Body mass index (BMI) is a common tool for deciding whether a person has an appropriate body weight.
  •  Human height and weight varies greatly between individuals and across populations for a variety of complex biological, genetic, and environmental factors, among others and can be same across the population sometimes. Hence, Height and Weight are human features that can be the same.
So, the correct answer is 'A and B'.