(D) The presence of nuclear pores or annuli in the nuclear membrane was first demonstrated by $Callan$ and $Tomlin$ in $1950$ using electron microscop

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

(D) The presence of nuclear pores or annuli in the nuclear membrane was first demonstrated by $Callan$ and $Tomlin$ in $1950$ using electron microscopy. These pores are essential for the transport of molecules between the nucleus and the cytoplasm.

Class 11 Biology Cell: The Unit of Life Nucleus and Chromosomes

Easy

Who demonstrated that the nuclear membrane contains numerous pores,circular structures,or annuli?

A
Fawcett
B
Strasburger
C
Butchen
D
Callan and Tomlin

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Biology Questions

Chapter

Cell: The Unit of Life

Subtopic

Nucleus and Chromosomes

What is the site of Balbiani rings?

MediumNEET 2015

View Solution

$DNA$ is primarily found in:

EasyAIPMT 1999

View Solution

Identify the correct match between types of chromosomes and their descriptions.

Chromosomes Position of centromere

$A$. Metacentric $1$. At the tip

$B$. Submetacentric $2$. Almost near the tip

$C$. Acrocentric $3$. At the middle

$D$. Telocentric $4$. Slightly away from the middle

Chromosomes	Position of centromere
$A$. Metacentric	$1$. At the tip
$B$. Submetacentric	$2$. Almost near the tip
$C$. Acrocentric	$3$. At the middle
$D$. Telocentric	$4$. Slightly away from the middle