In fruit flies, red eyes are dominant to green eyes. In a cross between a short-winged, green-eyed fly and a long-winged, red-eyed fly, the results were as follows: 40 percent short winged and red eyed 10 percent short winged and green eyed 10 percent long winged and red eyed 40 percent long winged and green eyed Which of the following reflects the chromosome makeup of the parents? (A) LlRr × Llrr
(B) Llrr × llrr
(C) LlRr × llrr
(D) LLRR × llrr
(E) LlRR × llRr

Answers

Answer 1

Answer: C) because the first fly has all recessive traits and so it would be llrr and the second fly has to have at least 1 dominant allele for the wings (Ll or LL) and for the eye color (Rr or RR) so c would be your best answer

Related Questions

The stress force that causes a mass of rock to pull or twist in opposite directions in called ______
While biodiversity includes the number of species in a given area, it also includes:- overall number of trophic levels in a food web. - unique phylogenetic lineages. - abiotic factors that define the community. - amount of primary productivity.
What do you call a group of organisms that are of the same species in an ecosystem?a. community b. producers c. population d. consumers
A fertilized egg undergoes several stages before it is successfully implanted. Thediagram below shows these stages as the fertilized egg travels through the femalePLEASE HELP human reproductive system in which structure of the female human reproductive systemis the blastocyst (fertilized egg) implanted during normal human development?
Despite the high-level of biodiversity, this biome has infertile soils, principally oxisols, to which the vegetation has roots systems that capture nutrients from litter decay.

During which phase of meiosis does crossing over chromosomes occur

Answers

Answer:

Pachytene of prophase I of meiosis I

Explanation:

Crossing over is the process of exchange of genetic material between non-sister chromatids of homologous chromosomes. It occurs during the pachytene stage of prophase I of meiosis I. During pachytene, the paired homologous chromosomes exchange genetic material between themselves and add new gene combinations to the daughter cells.

phase where crossing over chromosomes occur is prophase 1

A person can be immunised against a disease by injecting them with an inactive form of a pathogen.explain how this makes a person immune to the disease in a paragraph
(ill mark u brainlist)

Answers

Hey There!

_____________________________________

Answer:

_____________________________________

$\Large\textbf{ACTIVE AND PASSIVE IMMUNITY}$

Active Immunity, Immunity which is acquired by the own immune response of the body.

Passive Immunity, Immunity which is acquired and dependent upon the antibodies transported from another person or even an animal. A person's immune system does not acquire or make the antibodies itself. A newborn baby acquires passive immunity from its mother through the placenta.

x---------------------------------------------------x

$\Large\textbf{Vaccination:}$

Vaccination is a artificial active immunity. Artificial because the antibodies are not acquired by any natural infection but it is injected into the healthy body of the person. It is Active immunity because the body does not get already made (from other animal) antibodies but it acts on the small amount of the pathogen which is injected in the body and acquires the antibodies itself. So the person acquires antibodies naturally acting on the antigen. Antigen is any foreign agent which triggers the immune system to produce antibodies against it. Vaccines contains antigen which is a harmless form of the bacteria or a virus that causes the disease you are being immunised against. The bacteria or virus are in small proportion and greatly weakened in the vaccine so they just trigger an immune response without causing any real damage. When Vaccine is injected in the body, the immune system starts to make antibodies of different forms against the antigen(Virus or bacteria in the vaccine). When the appropriate shape antibody reacts with the antigen and forms antibody-antigen complex which destroys the antigen. This means that type and shape of antibody is perfect to work against that antigen, then the immune system start forming only those kind of antibodies in great proportion and the Person gets immunised by the vaccine in a natural way.

_____________________________________

Best Regards,

'Borz'

a vaccine works by training the immune system to recognize and fight pathogens, either viruses or bacteria. so certain molecules from the pathogen must be introduced into the body to trigger an immune response. so basically your not really immune your body will just know how to deal with it

Question 4What is the term for each step in the transfer of energy and matter within a food web?
Otrophic level
food chain
food pyramid
energy path

Answers

The answer is Trophic level.

Answer:

i believe it is energy path

Explanation:

The word haunted appear as a motif in John Updike's "The Brown Chest," in what way and how does it contribute to the meaning of the story?

Answers

The choices are:
A. The word haunted describes the boy’s ancestors. The word suggests their actions still affect him and influence his personality, even when he becomes an adult.

B. The word haunted describes items of antiquity. As a boy and as an adult, the narrator peers anxiously at old, unused items that make him feel uneasy.

C. The word haunted suggests that the boy is still haunted by memories of his childhood and his parents. The chest is a reminder of personal experiences he can’t ignore.

D. The word haunted describes the house the boy lived in. Even after he and his family moved to a new home, the memories of his fear stay with him.

The answer to your question is B. I hope this is the answer that you are looking for and it comes to your help.

Which two cell parts are most likely found in both types of cell? cell wall and cell membrane lysosome and vacuole vacuole and centriole lysosome and chloroplast'

Answers

Answer:

Plant and animals cells they are both eukaryotic cells, both have membrane bound organelles.They have nucleus, cytoplasm, cell membrane, mitochondria, endoplasmic reticulm, golgi apparatus, lysosomes, peroxisomes and ribosomes. Plant have cell walls and chloroplast animal do not

Explanation:

Answer:

The correct answer is option lysosome and vacuole.

Explanation:

Both the type of cell, the plant as well as animal cells do have the lysosome and the vacuoles. The vacuoles in the plant cells are prominent and very important organelle, a central large occupies a lot of volume of the plant cell. In the animal cells, the vacuoles are smaller and large in number. Lysosomes are also present in both animal as well as the plant cell.

A cell wall is a specific feature of the plant cell. Centrioles are not found in all plant cells, but are present in all animal cells. Chloroplast is the organelle, where the photosynthesis takes place, as animal cells do not perform photosynthesis, they do not have chloroplasts.

During _______, energy from the Sun is stored in the bonds of sugar molecules.

Answers

The answer is photosynthesis. During photosynthesis, energy from the Sun is stored in the bonds of sugar molecules. The energy of sunlight is converted into chemical energy stored in the chemical bonds. Plants use sunlight to convert carbon dioxide and water into sugar molecules and oxygen.

Answer:

photosynthesis

Explanation:

Other Questions

Positive tropism is described as __________.

What causes a nebula to collapse?

Choose all the answers that apply. Which of the following minerals can be scratched with a fingernail? -talc -diamond -topaz -quartz

America: Love it or leave it!The flawed logic in this statement is an example of A. slippery slope B. hasty generalization C. post hoc D. false dichotomy