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Alex787 [66]
3 years ago
7

What would happen if a sex cell could not complete DNA replication?

Biology
1 answer:
Mumz [18]3 years ago
4 0

Because meiosis creates cells that are destined to become gametes (or reproductive cells), this reduction in chromosome number is critical — without it, the union of two gametes during fertilization would result in offspring with twice the normal number of chromosomes!

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If alleles of two different genes assort independently during gamete formation then what should be the phenotypic ratio in the F
Pepsi [2]

Answer:

9:3:3:1

Explanation:

If alleles of two genes separate randomly during anaphase-I of meiosis, some new combinations of the alleles are formed in the gametes. A heterozygous genotype for two loci (let's support TtRr) produces a total of four types of gametes in 1:1:1:1 ratio (TR, Tr, tR, and tr). The random fusion of these gametes from two double heterozygous parents (TtRr x TtRr) gives a phenotype ratio of 9:3:3:1. Here, 9/16 F2 progeny exhibit dominant phenotype for both loci while 1/16 exhibits recessive phenotype for both the genes. Rest 3/16 and 3/16 F2 progeny express dominant trait for one gene and recessive for the other.

6 0
3 years ago
MULTIPLE CHOICE I THINK ITS B JUST CHECKING
Lubov Fominskaja [6]
You are right it is b                           

7 0
4 years ago
According to the text, the interaction of what three developmental domains shapes human development?
SCORPION-xisa [38]

Answer:

physical, cognitive, socio-emotional

Explanation:

The complete question is as follows:

According to the text, the interaction of what three developmental domains shapes human development?

Select one:

a. social, physical, moral

b. mental, physical, environmental

c. physical, cognitive, socio-emotional

d. environmental, genetic, perceptual

  • The term domain describes the specific aspects of the change and growth that takes place in relation to the human development.
  • The three main developmental domains that shapes human development are :physical, cognitive and socio-emotional domains.
  • The physical domain includes the physical changes and growth that takes place in a human body. It also includes the development of the motor skills and the use of senses.
  • The cognitive domain covers the aspect of development creativity and intellectual skills. It includes various factors such as memory, attention, planning, thought processing and accomplishing goals.
  • Socio-emotional domain includes the ability to deal with emotions and udnerstanding others emotions. This is a phase of developing attachments and interaction skills. During this phase the cooperative nature, empathatic nature and morality of an individual develops.
6 0
3 years ago
Hydrothermal vents are often rich in metals, such as copper, and also host dense populations of marine organisms. Which of the f
nydimaria [60]

The answer is copper. Nonrenewable resources are those that cannot be readily/naturally replaced at rates that match those of consumption (an aspect that allow renewable resources to be sustainable). Copper are made deep in earth at very slow rates hence do not readily renew themselves. Organisms, on the other hand die, and are naturally replaced by offspring.

4 0
3 years ago
Machines have moving parts and electronics that can overheat in some situations. Engineers use metal heat sinks to help the heat
Hunter-Best [27]
Because any other substance couldn't carry the heat and the amount of surface area gives it more of an opportunity to cool down
6 0
3 years ago
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