Various species of the flowering plant of the genus <em>Chrysanthemum </em>have 18, 36, 54, 72, and 90 chromosomes. The variation is likely due to polyploidy.
<h3>What is polyploidy?</h3>
Polyploidy can be defined as the number of complete sets of chromosomes in a given cell of an organism.
A diploid organism contains two complete sets of homo-logous chromosomes in its somatic cells.
Many organisms used polyploidy as an evolutionary strategy for adaptation to challenging environmental conditions.
Learn more about polyploidy here:
brainly.com/question/1237319
6)it is bigger then we ever thought and that we wont beable to explore it all..
CORRECT ME IF I AM WRONG
Answer:
Which of the following are assumptions the t-test makes?
variances in each group are equal
the collected data are normally distributed
Explanation:
There is equality in assumptions for t-test also all data collected are not skewed rather they are normally distributed
Explanation:
a) The allele for hemophilia is Xh and that for normal is XH.
Crossing a hemophiliac male, Xh Y, with a normal female XH XH,
- XH Xh, normal carrier female
- XH Xh, normal carrier female
- XH Y, normal male
- XH Y, normal male
b) Both parents are normal and children still having hemophilia means that the mother is a carrier.
Let's see how it'll work out if we cross a normal male with a carrier female,
XH Y × XH Xh
- XH XH, normal female
- XH Xh, carrier female
- XH Y, normal male
- Xh Y, hemophiliac male
This means that the possibility of a female being normal, a carrier or not, is 100%. The possibility of a male being normal is 50% and the possibility of him being a hemophiliac is also 50%.
Thus it's possible that all 7 sons get hemophilia as each male baby has a 50% chance of having the genotype Xh Y. And it makes sense that all the females are normal. Those females could have the genotypes XH XH, or XH Xh (carriers).
The correct answer is 2500 kcal/day.
During the first trimester of pregnancy, the daily energy requirements of the pregnant woman are the same as before the pregnancy. During the second and third trimester, the body's nutritional needs increase and the daily energy requirements increase by 300 calories.
