Answer:
<h2>(14+16)/1000 *100= 3</h2>
Explanation:
Parental combinations are always more common then other recombinant progenies.
A female fly is heterozygous for three X-linked genes crossed with an abc/Y male. . If single crossover occurs between a & b and between b & c, then the double cross is that, which occurs in both.
Double cross over progeny are always least in number, so here double cross occurs are in abC 14 and ABc 16.
So we are expecting that number of double cross over progeny= (14+16)/1000 *100= 3
Answer:
Option c. Only the haploid organism may also reproduce asexually.
Explanation:
It is scientifically approved that algae and fungi are able to form true asexual spores. This process of spore formation involves mitosis and resultant spore is called mito-spore which develop into new offspring.
Reference: Smith, B. A., and DANIEL D. Burke. "Evidence for the presence of messenger ribonucleic acid in Allomyces macrogynus mitospores." Journal of bacteriology 138.2 (1979): 535-541.
The body structure ( ovaries, testes, and external genitalia) that make sexual reproduction possible. Secondary spermatocytes
Answer: alternative A
Explanation: The deeper the layer in water, the <u>less light reaches it</u>. In deeper layers, therefore, it becomes difficult, if not impossible, to photosynthesis to occur. Having in mind that <u>phytoplankton and photosynthetic organisms depend on photosynthesis to survive,</u> they won't appear in such dephts.