Aplant that has round and yellow seeds (rryy) is crossed with a plant that has round and yellow seeds (rryy). what is the ratio of the offspring that will have round and yellow seeds?

key: r = round
r = wrinkled
y = yellow
y = green
1: 16
3: 16
8: 16
9: 16

The correct answer is- 9:16.

In the given question, genotypes of the parents are-

RrYy and RrYy, which shows heterozygous ( having two different alleles such as 'R' and 'r', 'Y' and 'y') dominant genotype for the shape and color of the seeds. A dominant allele ( shown with capital letter) masks the expression of a recessive allele ( that is presented with small letter).

Both the parents will produce same gametes, which are-

RY, Ry, rY, and ry.

When they are allowed to cross, they will produce offspring with 16 different  genotypes ( corresponding to 4 different phenotypes that are round yellow, round green, wrinkled yellow, and wrinkled green).

The ratio of the offspring that will have round and yellow seeds is 9: 16.

Refer punnett square.

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

hope this , have a good day. c;

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.