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
LenaWriter [7]
3 years ago
5

In peas, the allele for yellow seeds (Y) is dominant to the allele for green seeds (y). What would be the genotype and phenotype

ratios of offspring from a cross between Yy (heterozygous) and yy (homozygous recessive) individuals?
a. Genotype: ½ Yy : ½ yy; Phenotype: ½ yellow : ½ green
b. Genotype: all Yy; Phenotype: all yellow
c. Genotype: ½ Yy : ½ yy; Phenotype: all yellow
d. Genotype: all yy; Phenotype: all green
Biology
1 answer:
fiasKO [112]3 years ago
7 0

Answer: A. Genotype: 1/2 Yy; 1/2 yy. Phenotype: 1/2 Yellow; 1/2 Green.

Explanation: The answer lies in Punnett´s Square. A visual representation of Mendelian inheritance. Dominant genes always express when an organism presents them. Recessive genes express when both alleles contain the recessive gene. A heterozygote contains different alleles for the same gene (Yy). A homozygote contains the same alleles for the same gene (YY/yy), which can be a Dominant (YY) or Recessive (yy) Homozygote.

     y  |  y

Y  Yy | Yy

y   yy | yy

You might be interested in
If you placed two stainless steel spheres in contact with each other and the electrical charges were distributed because a negat
xxTIMURxx [149]

Answer:

Given that a negatively charged rod is brought closer to two metal spheres which are in contact with each other as shown: So, free electrons from rod will be attracted towards the metal spheres.

4 0
2 years ago
Bone formation begins when ____________ secrete the initial semisolid organic form of bone matrix called ____________ .
butalik [34]

Answer:

a. osteoblasts

b. osteoid

Explanation:

Osteoblasts are the fundamental cell of bone tissue. They are the cells that synthesize the bone matrix called osteoid from which it is made from the skeleton of bone fish, to the skeleton of humans. Since the bone skeleton is an evolutionary paraphiletic characteristic (it is present in several taxonomic groups that have evolved from the same ancestor).

Osteoblasts are responsible for the development and growth of bones during the juvenile stage of individuals and are also responsible for maintaining adult bone and regenerating bone when it breaks.

Osteogenesis is the process of differentiation of osteoblasts. The cells from which osteoblasts differ are called osteoprogenitors. The differentiation of osteoprogenitor cells, which come from the mesoderm, periosteum or bone marrow, is induced by growth factors called bone morphogenetic proteins (BMPs), capable of inducing the growth of bone, cartilage or connective tissue. When an osteoprogenitor cell receives a BMP signal, it quickly begins to express the genes to generate collagen, osteonectin and alkaline phosphatase, among other compounds necessary for bone growth. When the bone grows, it ends up wrapping some of the osteoblasts and they lose their ability to replicate, at that time they are dedicated to bone maintenance and not to their synthesis and are called osteocytes.

6 0
3 years ago
What differs among DNA structures of different species?
Iteru [2.4K]

Alternative ways of representing nucleic acid chains, in this case a single strand of DNA containing only three bases: cytosine (C), adenine (A), and guanine (G). ... This structural difference is critical to the different functions of the two types of nucleic acids.

6 0
3 years ago
Read 2 more answers
Houston is seeing a huge growth in population, including cutting down trees and clearing fields in order to build larger roads a
agasfer [191]

Answer:

Explanation:

9msksk1

7 0
2 years ago
A student observers melting crayons. Which of the following describes what they saw? A. A chemical change. B. A physical change.
tatyana61 [14]

Answer: A physical change

Explanation: since the melted they are still Crayons. You can freeze it and it would still be a crayon. So it was only a physical change

8 0
2 years ago
Other questions:
  • In the article, which technologies have been developed to enhance space exploration? Choose all that apply.
    15·2 answers
  • When the CAU anticodon of a tRNAMet was modified to UAC, the anticodon for tRNAVal, valine aminoacyl-tRNA synthetase, recognized
    8·1 answer
  • Which of these is a heterotroph?
    13·2 answers
  • How the population environment and health are related with different aspects? Elaborate
    13·1 answer
  • Will give brainliest
    10·2 answers
  • The following map of the Gulf of Mexico shows reported sightings of whale sharks. What explanation best describes why the highes
    6·1 answer
  • I neeeeeeedd helpppp
    13·1 answer
  • Which of the following is not typical of a capillary?
    6·1 answer
  • Cnidarians are mostly composed of _____<br> A.water.<br> B.cytoplasm.<br> C.blood.<br> D.jelly.
    14·2 answers
  • Answer these two plssss heeeeelllllllppppp
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!