Genetics And Plant Breeding - Study Mode

[#816] If a line will have a pair of chromosome from another species in addition to its own full somatic complement, the line is called as
Correct Answer

(C) Alien addition line

Explanation

Solution: If a line will have a pair of chromosomes from another species in addition to its full somatic complement, the line is called an Alien addition line. Alien addition lines are formed by adding one or more heterologous chromosomes from an alien donor species to the original genome of the recipient species. Alien addition lines (MAALs), which carry an additional chromosome from a related species through interspecific/intergenomic hybridization, have become powerful tools for genetic and genomic research.

[#817] The DNA strand has the polarity of 3' - 5' is referred to as
Correct Answer

(B) Template strand

Explanation

Solution: The DNA strand has a polarity of 3' - 5' and is referred to as the Template strand. DNA is double-stranded, but only one strand serves as a template for transcription at any given time. This template strand is called the noncoding strand. The non-template strand is referred to as the coding strand because its sequence will be the same as that of the new RNA molecule.

[#818] The flowers which open after pollination is
Correct Answer

(B) Chasmogamy

Explanation

Solution: The flowers which open after pollination are Chasmogamy. Chasmogamy is a plant reproductive mechanism in which pollination occurs in chasmogamous flowers. These flowers are commonly showy with open petals encircling exposed reproductive parts. Chasmogamous stems from Greek for "open marriage", named after the open arrangement of floral structures. Seeds produced by chasmogamous flowers that are cross-pollinated, may also exhibit hybrid vigour (heterosis) and increased fitness.

[#819] Anticodon is present on
Correct Answer

(B) tRNA

Explanation

Solution: Anticodon is present on tRNA. An anticodon is a trinucleotide sequence located at one end of a transfer RNA (tRNA) molecule, which is complementary to a corresponding codon in a messenger RNA (mRNA) sequence. Anticodons are found on molecules of tRNA. Their function is to base pair with the codon on a strand of mRNA during translation. This action ensures that the correct amino acid will be added to the growing polypeptide chain. A tRNA molecule will enter the ribosome bound to an amino acid.

[#820] An example of dicotyledonous albuminous seed is
Correct Answer

(A) Soybean

Explanation

Solution: An example of a dicotyledonous albuminous seed is Soybean. Albuminous seeds refer to those seeds that retain or restore some part of the endosperm during embryonic development. Soybeans contain a small but significant 2S storage protein. 2S albumin is grouped in the prolamin superfamily. Soybeans contain significant amounts of phytic acid, dietary minerals and B vitamins.