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
r-ruslan [8.4K]
3 years ago
7

100 Points HELP ASAP

Biology
2 answers:
Reptile [31]3 years ago
6 0

Answer no 1)

The cross between a homozygous red bull (RR) and a heterozygous red cow can be made as follows:

          R      r

R   RR        Rr

R   RR        Rr

The results from the experiment show that 50% of the genotype will be homozygous for red colour and 50% of the population will be heterozygous for the red colour. The phenotype will be 100% red.

Answer No 2)

Cross between a heterozygous red bull (Rr) and a heterozygous red cow (Rr)

can be shown as follows:

      R       r

R   RR    Rr

r    Rr     rr

The results show that the genotype will be 25 % homozygous dominant, 50% heterozygous and 25% homozygous recessive. The phenotype will show 75% dominant trait (red) and 25% recessive trait (white).

Answer No 3)

The cross between a homozygous white bull (rr) and a homozygous white cow (rr) can be shown as follows:

      r            r

r    rr             rr

r    rr             rr

The results from the punnet square show that the genotype of all the offsprings will be homozygous recessive (rr) and the phenotype will be recessive ( white).

hjlf3 years ago
6 0

Answer:

The results from the punnet square show that the genotype of all the offsprings will be homozygous recessive (rr) and the phenotype will be recessive ( white).

Explanation:

You might be interested in
The galactose derivative that enters the glycolytic pathway is 2‑phosphoglycerate glucose fructose‑1,6‑bisphosphate fructose‑6‑p
kkurt [141]

Answer:

fructose 1-phosphate

Explanation:

3 0
4 years ago
How do scientists use recombinant DNA technology to produce the drug insulin.
Dvinal [7]
Since diabetics are not able to make enough insulin, scientists use gene engineering to make it for them. they insert the gene that codes for the production of insulin in the plasmid (circular DNA of bacteria ) to create recombinent DNA, and the bacteria will asexually reproduce, making more and more of the insulin in a short amount of time! hope this helped it took me a long time to understand the whole process in this unit!
3 0
3 years ago
A carpenter sands a wooden board until it is smooth. It this a physical change or a chemical change?
AleksandrR [38]
Physical change as no new substance is created
8 0
3 years ago
30 grams of ammonia (NH3), nitrite (NO2-), and nitrate (NO3-) are added to a soil sample.
vichka [17]

Answer:

stay the same, decrease, increase in that order

4 0
4 years ago
What is the minimum pH difference such that transfer of one H ion across the membrane would provide enough energy to make one mo
Studentka2010 [4]

Answer:

The minimum difference is already the value of 1

Explanation:

When the pH is not balanced between the extracellular and intracellular environment, the cell could go into shock, that is why in the face of the minimal differences in pH between the internal or external environment, the proton pump is activated, this is how the hydrogen ion or positively charged protons cross the membrane and indirectly generate ATP molecules.

5 0
3 years ago
Other questions:
  • The Bay of Fundy has the greatest tidal ranges on Earth. What can you infer about the Bay of Fundy?
    6·2 answers
  • What do chloroplasts look like under a microscope?
    7·1 answer
  • Is cellular respiration an endothermic or exothermic reaction and explain
    8·1 answer
  • The best model for studying the effect of ex-p is?​
    8·2 answers
  • Researchers performed an experiment to investigate DNA replication. First, they synthesized radioactively-labeled nucleotides, w
    5·2 answers
  • BRAINLIST <br><br> Igneous rock.<br><br> (a )Tilting,<br><br> (B) Erosion, <br><br> (c) Folding
    7·1 answer
  • The condition of Earth’s atmosphere at a particular time and place is called _________________.
    6·1 answer
  • O C. mitochondria 2. Where is the major site of photosynthesis in a plant? * O A. the stem O B. the roots O C. the leaves​
    5·1 answer
  • Does anyone know the answer??!
    15·1 answer
  • A cell contains DNA damage that causes it to undergo apoptosis before reaching mitosis. This cell had twice the amount of DNA fo
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!