1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kaylis [27]
3 years ago
5

A scientist is studying the inheritance of two characteristics in plants: red flowers (RR and Rr) , which are dominant to yellow

flowers (rr) , and green leaves (GG and Gg) , which are dominant to yellow leaves (gg) . She crosses a double heterozygous (RrGg) with a double recessive (rrgg) , and expect to see a 1:1:1:1 ratio in the offspring. Instead, she sees these results: Genotype RrGg rrgg Rrgg rrGg Predicted outcome 500 500 500 500 Actual outcome 900 900 100 100 Which phenomenon would she hypothesize accounts for the pattern she sees? crossing-over respiration cytokinesis independent assortment
Biology
1 answer:
marin [14]3 years ago
7 0

Answer:

The correct option is <em>B. Crossing- over </em>

Explanation:

In biology, crossing over can be described as a phenomenon by which homologous chromosomes exchange segments during the process of meiosis.

The unexpected results came because the DNA segment between the homologous chromosomes was exchanged during meiosis. The alleles got shuffled by this process and hence showed the unexpected results.

Crossing over and independent assortment are phenomenon which occurs only during the process of meiosis. These phenomenons cannot be observed during mitosis.

You might be interested in
How are the dark reactions dependent on the light reactions
andre [41]
Light-independent reactions (dark reactions). Light reactions need light to produce organic energy molecules. Dark reactions make use of these organic energy molecules.
8 0
3 years ago
AP Biology Hw? Thanks
ollegr [7]
I’m pretty sure it’s E
5 0
3 years ago
Which of the following formulas is most likely to be a protein molecule?
timofeeve [1]
Im pretty sure the answer is A) C6H12O6
5 0
3 years ago
Read 2 more answers
The instructions for the traits of an organism are determined by:
romanna [79]

Answer:

In all organisms, the instructions for specifying the characteristics of the organism are carried in DNA, a large polymer formed from subunits of four kinds (A, G, C, and T). ...

Most of the cells in a human contain two copies of each of 22 different chromosomes. ...

Changes in DNA (mutations) occur spontaneously at low rates.

7 0
3 years ago
When you eat salmon for dinner, your digestive system will break down that food
zimovet [89]

Answer:   c. Amino Acids

Explanation:

Food is chemically and mechanically broken down into smaller particles like building blocks, the smallest of these are a basic unit called monomers. In the <em>stomach</em>, the enzyme pepsin breaks proteins, like those found in salmon, into smaller peptides by splitting the peptide bonds holding the proteins together. The <em>duodenum</em> processes these newly-formed peptide chains or polypeptides, into smaller ones, through the enzyme action of elastase, trypsin and chymotrypsin; these are produced in the pancreas. Peptidases convert these fragments into amino acid monomers for absorption into the bloodstream via the small intestines.

6 0
3 years ago
Other questions:
  • True or false Particles of Minerals Call grains give a rock its texture
    9·1 answer
  • Which of the following cranial nerves carries only motor information
    9·1 answer
  • Which is the best example of a hypothesis?
    10·1 answer
  • Inflammation, your skin, and macrophages are all part of the body's ___ immune system response to a pathogen. allergic general p
    15·2 answers
  • Natural selection does not
    12·1 answer
  • Use the drop-down menus to correctly identify the steps in the water cycle Label a condensation evaporation precipitation
    15·1 answer
  • ANSWER THIS FOR 20 POINTS!!!
    15·1 answer
  • When certain molecules accept and then donate electrons, they also pick up H+ ions in the matrix, then release them into the int
    10·1 answer
  • All of the following is allowed in wilderness except
    9·1 answer
  • Where do the decomposers come in the food chain if the pyramid gose like
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!