It is a mating in which an individual showing a dominant phenotype is crossed with an individual showing its recessive phenotype. In a test cross, the unknown individual must be of a dominant phenotype because if the phenotype is recessive the genotype will have to be homozygous recessive.
Answer: The correct option is A (chromosome Number is reduced from diploid to haploid)
Explanation:
In sexual reproduction, offspring are produced by fusion of two different sex cells which usually come from two different parents. These sex cells are know as gametes.
Meiosis is a type of cell division that gives rise to gametes in which the chromosome number is halved. Thus, the gamete cell is said to contain a haploid number (n) of chromosomes.
A diploid cell has two sets of chromosomes: one from the male parent and the other from the female parent. When a diploid cell undergoes meiosis the following occurs:
--> the chromosomes replicate once and
--> the nucleus and cell duplicate ( divide equally) twice.
As a result, the diploid parent cell gives rise to four haploid gamete cells. Therefore the statement "chromosome Number is reduced from diploid to haploid ' is true concerning meiosis I.
Answer:
The correct answer is A.
Explanation:
If a broken or fractured bone is not healed properly, it is called a malunion. This can happen because of incorrect medical treatment or lack of medical treatment, misalligned bones when healing etc. So the correct answer is option A.
I hope this answer helps.
<em>Photosynthesis processes used plants and other autotrophs to capture light energy and use it to power chemical reactions and convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches. </em>
<em>The </em><em>similarities</em><em> and </em><em>differences</em><em> between photosynthesis and cellular respiration:</em>
<em>The Similarities; </em>
- <em>Both involve in production of energy
</em>
- <em>
Both involve the exchange of gases</em>
<em>The Differences: </em>
- <em>Photosynthesis takes put in chloroplast, where as cellular respiration takes put in mitochondria.</em>
- <em>Photosynthesis happen as it were during presence of daylight where as cellular respiration happens all the time.</em>
<em>Glad to help ya!! Please correct any mistakes in my answer!! :)</em>
