Answer:
The waste products are Carbon Dioxide and Water.
Explanation:
Answer:
10.2 cM
Explanation:
Given,
pure breeding parent 1 : BBgg = brown coat and pink eyes
pure breeding parent 2 : bbGG = white coat and green eyes
BBGG X bbgg = F1 = BbGg ( All are brown with green eyes )
When F1 progeny is test crossed with white coat and pink eyes hamster:
BbGg X BbGg = F2 =
brown, pink eyes = 99 = parental
white, green eyes = 103 = parental
brown, green eyes = 12 = recombinant
white, pink eyes = 11 = recombinant
Recombination frequency =
(total number of recombinants / total progeny ) * 100
= [( 11 + 12 ) / ( 99 + 103 + 12 + 11 )] * 100 = (23/225)*100 = 0.102 * 100 = 10.2 %
1 % recombination frequency = 1 cM distance between genes
Hence, the distance between B and G gene is 10.2 cM
Answer:
B. Meiosis I
Explanation:
In meiosis I, it starts with a diploid cell with a homologous chromosome pair. The crossing of genetic material between chromosome pairs also occurs in this stage. The alleles containing the same trait would get separated so a new combination of alleles can be produced.
Answer: Tightly wound chromosomes, composed of DNA, must unwind before replication. Cell replication splits a cell into two parts, both of which become new, fully functioning cells. Before this can happen, however, cells require a full complement of DNA for each of the new daughter cells that will form as a result of the split. Because of this, DNA makes a copy of itself in a process known as replication during interphase, a stage that occurs before cells divide.
Cell Phases: Mitosis is the process by which parent cells each divide into two identical daughter cells. However, this majority of the cell's time is spent in interphase, during which it performs normal metabolic functions necessary for the organism, such as manufacturing protein. DNA occurs during the S phase of interphase, sandwiched between the G1 and G2 phases. The cell uses checkpoint signals to ensure at the end of G1 that it is big enough to replicate and at the end of G2 to determine whether or not DNA replication has succeeded. If so, the cell can undergo mitosis, at which point DNA winds up tightly for easy transport during the process.
DNA Replication: Replication begins with DNA unwinding and unzipping, its two strands coming apart. While only one side is the “correct” code, containing the actual genetic information used to build the organism’s proteins, both can be the base for a new strand of complete DNA. The enzyme DNA polymerase matches up each base with the correlating base: adenine with thymine and guanine with cytosine. When each pre-existing base has been matched to a nucleotide, which also contains the sugar and phosphate of the DNA’s backbone, the strand is complete.
A biochemical cycle that is well know to everyone is the water cylce
