Biology, 10.09.2019 19:30 morganberry7057
Some inbred strains of the weedy plant arabidopsis thaliana flower early in the growing season, but other strains flower at later times. four different arabdiposis plants (1–4) were crossed, and the resulting progeny were tabulated as follows: mating progeny 1 × 2 77 late : 81 early 1 × 3 134 late 1 × 4 93 late : 32 early 2 × 3 111 late 2 × 4 65 late : 61 early 3 × 4 126 late a. explain the genetic basis for the difference in flowering time. how do you know that among this group of plants, the flowering time trait is influenced by the action of a single gene? which allele is dominant and which recessive? b. ascribe genotypes to the four plants. c. what kinds of progeny would you expect if you allowed plants 1–4 to self-fertilize, and in what ratios?
Answers: 3
Biology, 22.06.2019 04:30, kaciewelkerouwdfa
Plz fast biotechnology is a growing field of applied biology. many crops such as corn have been engineered to be resistant to herbicides. therefore farmers can spray these chemicals to kill weeds growing near the crop without worries of killing the crop itself how does this type of biotechnology work? a. by changing the genetic make up of the crops. b. by causing the crops to kill the weeds. c. by changing the type of crops used. d. by changing the location of the crops.
Answers: 1
Biology, 22.06.2019 09:30, zahwaahmaf
Parthenogenesis is a type of reproduction that does not require a mate. it’s rarely seen in birds and higher vertebrates. parthenogenesis involves the formation of a zygote. but this zygote is formed without fertilization. in parthenogenesis, in the absence of a male gamete, the ovum develops directly in the zygote.
Answers: 1
Some inbred strains of the weedy plant arabidopsis thaliana flower early in the growing season, but...
Mathematics, 01.04.2021 18:00