Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

Long and value based question of heredity and evolution chapter with answer
Asked by amolshukal.2001 | 06 Oct, 2017, 08:16: PM
answered-by-expert Expert Answer
1. "A brother and sister are more related to each other as compared to the case when any one of them is related with his/her cousin". Through this statement what will we get to know about their ancestors?
 
Ans:  A brother and sister are more closely related to each other which mean that they have common ancestors more recently as compared to the case when any one of them (brother or sister) is related to the cousin. A brother and sister have their “parents” in common while a brother or sister and cousin have “grandparents” in common.
 
2. Why a mice whose tail has been removed by surgery does not produce tailless mice?
 
Ans: Because taillessness character is not present in germ cells of mice so it is an acquired character which cannot be passed onto the next generation.

3.  Mrs. Kumar is pregnant for the last three months and she goes for regular check-up to her doctor. During her last visit, the doctor asked Mrs. Kumar to get an ultrasound done. Both Mr. and Mrs. Kumar went to a radiologist and got the ultrasound done. Once the ultrasound is over, Mr. Kumar asked the doctor whether the baby in the womb is a boy or a girl.

(a) What should the doctor reply to the couple?

(b) Is it ethical to determine the sex of a child?

(c) What should government do to discourage sex determination?

 

Ans:

(a) The doctor should not tell the sex of the foetus.

(b) No, it is not ethical to determine the sex of a child.

(c) The government should ban the process of sex determination and should punish or fine whosoever does so.

Answered by Sivanand Patnaik | 09 Oct, 2017, 09:16: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 10 - Biology
What is the difference between eyes and eye spot? Which animal poses eye spot?  
Asked by shivamvibhute | 11 Mar, 2019, 09:27: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
Give one difference between eyes and eye spot. Which animal possesses eye spots?
Asked by anitabhattu | 10 Mar, 2019, 08:29: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
What is called phylogenetic system of classification?
Asked by rushabh123 | 10 Mar, 2019, 06:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
Two people looks similar but they have different ancestors. Again two people looks different but they have common ancestors.justify
Asked by me.d.savitha | 07 Mar, 2019, 09:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
Selection of variants by environmental factors forms the basis for evolutionary processes.explain the statement with example.
Asked by Tejasvikumar12438 | 07 Mar, 2019, 09:00: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
Why energy required is less for amphibians than for birds?
Asked by sakshikumari4592 | 23 Feb, 2019, 11:21: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
How do variations arise in organism?"Variations is useful for the survival of species".justify this statement with the help of an example.  
Asked by himanshi.updel | 26 Jan, 2019, 06:54: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
In evolutionary term we have more common with a school boy or a chimpanzee
Asked by dgthakur911 | 25 Jan, 2019, 05:43: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
What are the tools for finding evolutionary relationship in human  
Asked by Kalae1982 | 07 Jan, 2019, 06:37: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Biology
How evolution and classification of organism is interlinked?
Asked by md.rasheedalammasoom500 | 02 Jan, 2019, 04:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×