Answer:
Only mRNA can be used to repair mistakes in the DNA sequence.
Explanation:
Answer:
The abiotic factors in an ecosystem include all the nonliving elements of the ecosystem. Air, soil or substrate, water, light, salinity and temperature all impact the living elements of an ecosystem. I WISH I HELP
Answer:
H.) The offspring will have the correct number of chromosomes when the sperm and egg are joined
Explanation:
This is because the sperm has 23 number of chromosomes and the egg has 23 number of chromosomes as well. When they fuse, they from 46 chromosomes.
Answer:
AB, ab, Ab and aB
Explanation:
The zygote has the genotype <em>AaBb </em>because it was formed by the fusion of a sperm cell <em>AB</em> and an egg <em>ab</em>.
During meiosis the diploid <em>AaBb</em> germ cell will reduce its chromosome number by half, producing a total of 4 haploid daughter cells (the gametes, in males the sperm cells) with just one allele per gene. The genes <em>A </em>and <em>B</em> are on different chromosomes, so they assort independently, and 4 types of gametes can therefore be produced: <em>AB, Ab, aB </em>and <em>ab</em>.