Answer:
Double Helix
Explanation:
It is called the double helix for the signature shape that a DNA strand takes.
Answer: Option B - There are more than four genes that determine this trait.
Explanation:
The tobacco plant species have its leaf colour with characteristics that changes gradually over a range of values, which refers to continuous variation.
Note that continuous variation keep expressing gene variants in successive generations of the tobacco plants, that differs from the parents. So, there are MORE THAN four genes controling the expression of varying phenotypes in the leaves
Answer:
Bacterial plasmid are easily gotten from commercial suppliers, controlled to produced recombinant plasmits through the process of inserting foreing DNA, before it is introduced into bacterial cells.
The question is incomplete as it lacks te end part of the question. However, the missing part is as follows:
In the F2 generation, all possible combinations of these traits were expressed in ratios consistent with Mendelian inheritance. Identify the four dominant traits, and enter them in ALPHABETICAL order in the blanks provided. [x],[y],[z],[a].
Answer:
The correct answer is :
x)axial
y)full
z)round
a)violet
Explanation:
True breeding organisms are organisms that carry two same alleles of a particular trait or character either dominant or recessive. In this given case the two breeding plants have four distinct traits, round, terminal, violet, constricted in one parent and wrinkled, axial, white, full in other.
In f1 there would be only dominant alleles for these characters will be expressed, that is already given in the question-
round, axial, violet, and full
The alphabetical arrangement of the dominant alleles are-
x)axial
y)full
z)round
a)violet
Answer:
The correct answer will be option-true.
Explanation:
Follicular stimulatory hormone or FSH and inhibin are the complex proteins which play a various biological role in the reproductive system.
The FSH stimulates the secretion of inhibin from the gonads in both males (Sertoli cells) and females (granulosa layer). The production of inhibin suppresses the secretion of FSH from the pituitary gland.
The suppression of FSH directly suppresses the secretion of further inhibin and thus, option-true is the correct answer.
