Once the pullets arrive at the layer house they are fed a layer ration high in calcium (egg shells require a LOT of calcium!) and given 14-16 hours of light daily to stimulate egg production. Most producers like flocks to begin laying at around 20 weeks of age. A flock of hens will lay efficiently for 60-65 weeks.his saves time and money separating the females for egg production. Todayâs egg producing hens can produce over 300 eggs per year; this is over twice the average of 150 eggs per year in 1947.
DNA is double helical in structure. each spiral strand, composed of a sugar phosphate backbone and attached bases, is connected to a complementary strand by hydrogen bonding (â¦ non-covalent) between paired bases, adenine (A) with thymine (T) and guanine (G) with cytosine (C).
1) Which statement describes the DNA in daughter cells? The double helices in each daughter cell consist of one parental stand and one newly made strand. 2) Which term describes DNA replication? Semiconservative: 3) What kinds of bonds link the two strands of a double helix to each other? Hydrogen bonds. 4) DNA synthesis begins at? the replication origins. 5) Replication origins typically consist of a small stretch of DNA that is relatively easy to open. Which statement is true? Replication origins are rich in A and T nucleotides. 6) DNA synthesis proceeds in from? 5â to the 3â direction. 7) Nucleotides are linked by? phosphodiester bonds.