Ask question

Ask question

All categories

3 years ago

12

A farmer mates a homozygous tall, red tomato plant (TTRR) with a heterozygous tall, red tomato plant (TtRr). Find the genotypes

and phenotypes ratio

1 answer:

Gnom [1K]3 years ago

4 0

Answer:

Cross between the two will produce following offspring -

TTRR - homozygous tall, red tomato plant

TTRr - Tall and red

TtRR - Tall and reds

TrRr -Heterozygote Tall and red

Explanation:

Given -

Genotype of homozygous tall, red tomato plant is TTRR

Genotype of heterozygous tall, red tomato plant is TtRr

Gametes of TTRR - TR, TR, TR, TR

Gametes of TtRr - TR, Tr, tR, tr

Cross between the two will produce following offspring -

TTRR - homozygous tall, red tomato plant

TTRr - Tall and red

TtRR - Tall and reds

TrRr -Heterozygous Tall and red

You might be interested in

What are the four types of macromolecules, their bulding blocks, and their main functions?

OleMash [197]

Carbohydrates: Molecules that provide energy/ fuel and build structures in the body. Example: Sugar. Starch, Cellulose. Building Blocks. Monosaccharides

Lipids:Molecules that store energy and regulate the body's metabolic processes. Building Block: Fatty Acids and Glycerol. Examples: Fats, Steroids, Cholesterol

Proteins: Molecules that provide structural support, cell communication, storage transport, movement, and defense. Building Block: Amino Acids Examples: Enzymes, Structural Components

Nucleic Acids: Molecules that enable living organisms to reproduce genetic information and pass them from one generation to another. Building Blocks: Nucleotides. Examples: DNA and RNA Building Blocks:

8 0

3 years ago

Which are steps of mitosis? Select 4 options.

-Dominant- [34]

Answer:

Mitosis occurs in four phases: 1) prophase, 2) metaphase, 3) anaphase, and 4) telophase.

An easy way to remember this is with the acronym P.M.A.T. - Please Make A Treat.

5 0

2 years ago

if a plant cell in G1 phase with 12 chromosomes undergoes mitosis, how many chromosomes would a daughter cell have

MariettaO [177]

I have my notes here about cell division which could hep you solve the problem on your own.

The first period of the first phase (interphase) of the cell cycle is G1, followed by S and G2, and finally by the mitotic phase.

During G1, the ploidy (the quantity of DNA molecules in the cell) can be represented by the formula 2n (n is the number of DNA molecules in a gamete cell of a given species). During S, DNA duplicates and the quantity of genetic material increases from 2n to 4n. During G2, the quantity remains the same: 4n. After the mitotic phase, the quantity of genetic material decreases to 2n in each daughter cell.

8 0

3 years ago

Mafic lava tends to have low silica content. Based on this, which of the following statements about mafic lava is most likely tr

sashaice [31]

Answer:

A. It contains fewer volatile gases.

Explanation:

Mafic lava have a composition of about 45-55% silica with high amount of Fe, Mg, Ca.

The silica content is quite low compared to those of granitic magma whose silica content can reach up to about 60%.

What determines the viscosity of magma is basically the silica content of the magma and the temperature of the magma. Viscosity is the resistance to flow.

The higher the silica content, the lower the viscosity and the higher the amount of volatile gases. Such type of magma is the granitic magma. Granitic magma due to their viscosity flows slowly.

The lower the silica content, the higher the viscosity and the lesser the presence of volatile gases in them. Such an example is Mafic magma. Mafic magma flows very slowly with low amount of dissolved gases.

8 0

4 years ago

Read 2 more answers

Which process is correctly matched with its explanation?

Ivan

The correct answer is extinction-adaptive characteristics of a species are not adequate. Extinction is an evolutionary term referring to the termination of a species because they are no longer able to survive under the conditions of their environment.
Natural selection is wrongly explained here since it is the evolutionary mechanism according to which the fittest organisms survive.
Gene recombination is also wrongly explained. It is the exchange of genetic material between different chromosomes or different parts of the same chromosome.
Mutation is also wrongly explained since it is a permanent change in the nucleotide sequence of the genome.

6 0

3 years ago