Mitotic Spindle is structure in a cell coordinates the production of microtubules used in meiosis. It is a football-shaped structure formed of microtubules and concerted proteins which is involved in the movements during mitosis and meiosis.
Answer: A is mars , B is earth
Explanation:
.
Answer: The genotype of a female is XX while that of a male is XY. The probability of them having a male child is 1/2 while the probability of having a female child is 1/2.
Explanation: Normally, females have two X chromosomes (XX) while males have one X chromosome and one Y chromosome (XY). In a cross between a man and a woman, there is fifty percent chances of having a female child and also fifty percent chances of having a male child. Therefore, the probability of having a female child is 1/2 while the probability of having a male child is also 1/2.
See the punnett square attached
The mRNA strand is complementary to the DNA template strand; however, uracil instead of adenine is paired with thymine best describes the model of the mRNA strand being transcribed.
<h3>What is mRNA?</h3>
This is referred to as messenger RNA and is a type of single-stranded RNA which is involved in protein synthesis. It carries the genetic information needed to make proteins and is complementary to the DNA template strand.
It however has a different base pair to DNA such that uracil instead of adenine is paired with thymine.
This base pair difference is therefore described as the most appropriate choice in the description of the mRNA strand.
Read more about mRNA here brainly.com/question/12388408
#SPJ1
