TLS Online TPP Program

#Question id: 11368


Which of these statements about prokaryotes is correct?

#XL - S Microbiology
  1. Bacterial cells conjugate to mutually exchange genetic material.
  2. Their genetic material is confined within a nuclear envelope.
  3. They divide by binary fission, without mitosis or meiosis.
  4. The persistence of bacteria throughout evolutionary time is due to their genetic homogeneity (i.e., sameness).
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TLS Online TPP Program

#Question id: 5716

#XL - R Botany

Which of the meiotic pairing possibilities in tetraploids and their consequence is correct?

A-chromosomes pair as bivalents, segregate normally producing diploid gametes.

B- Chromosomes pair as quadrivalent, segregates normally producing tetraploid gametes.

C-Chromosome pair as Trivalents form, segregation leads to nonfunctional aneuploid gametes

 D- Chromosome pair as Trivalents form, segregation leads to producing diploid gametes

TLS Online TPP Program

#Question id: 5718

#XL - R Botany

aneuploids may arise through nondisjunction, the failure of homologous chromosomes or sister chromatids to separate in meiosis. which of following the incorrect about nondisjuction ?

TLS Online TPP Program

#Question id: 5720

#XL - R Botany

Which two of the following are the CORRECT statements ?

P. Nondisjunction in the parental meiosis is not essential to produce diploid organisms

Q. Nondisjunction in the parental meiosis is essential to produce aneuploid organisms

R. Nondisjunction in the parental meiosis is essential to produce hexaploid organism

S. Nondisjunction in the parental meiosis is essential to produce tetraploid organisms

TLS Online TPP Program

#Question id: 5721

#XL - R Botany

There is paracentric inversion heterozygote ABCDEFG/ABFEDCG involved in double recombination during meiosis I within inverted region result in

A. dicentric and an acentric chromosome in meiosis I as the chiasmata get terminated.

B. appearance of deletion in both the cross over product

C. all gamete are viable

D. nonviable gametes from crossover products.

Which of the above statements are correct?

TLS Online TPP Program

#Question id: 5737

#XL - S Microbiology

When an organism gains one extra copy of a chromosome but not a complete haploid set, the conditions is known as

TLS Online TPP Program

#Question id: 5737

#XL - T Zoology

When an organism gains one extra copy of a chromosome but not a complete haploid set, the conditions is known as