Answer:
1. 50% of the genome comes from each parent because it is crucial otherwise if the ratio changes, the zygote may not form and if formed the fetus may have some other kind of chromosome number related syndromes etc.
2. Sexual reproduction produces greater genetic variability than asexual methods. This is because of the process of crossing over during meiosis that exchange the segments of chromosome that is necessary for producing mutations and genetic variability.
3. 50% of chromosomes match with each parent because both of the parents contributed 23 chromosomes and exactly 50% of their genome.
4. The gametes must be produced by two different individuals cause that is the main purpose of sexual reproduction and give better survival like this to the forming next generation. Not to mention produces greater genetic variability among species.
5. Plants always produces both eggs because they are hermaphroditic in nature.
Answer:
<h2>
A. mRNA ( messenger RNA),B. rRNA (ribosomal RNA) and C. tRNA (transfer RNA )</h2>
Explanation:
A. mRNA ( messenger RNA);
i)it is the most abundant form of RNA
,
ii) specifies the amino acid sequence for a protein
,
iii) contains exons.
B. rRNA (ribosomal RNA);
i) it is assembled in the nucleolus
,
ii) is a component of ribosomes
.
C. tRNA (transfer RNA );
i) contains anticodon,
ii) has amino acids covalently attached
.
Answer:
rain is very important for life in certain areas, this is why you see little life in deserts and even they need rain occasionally. more rain will lead to more life, first, it will be the plants that move in, then once they grow, vegetation eaters will move in, then after that meat-eaters will move in to eat those creatures and the ecosystem will flourish.
The answer is A because if you want a reliable source of scientific information you should go to an actual scientist at a scientific conference.
