Q1 in birds sex is determined by the zw chromosome scheme

Reference no: EM13352972

Q1. In birds, sex is determined by the ZW chromosome scheme. Males are ZZ and females are ZW. A recessive lethal allele that causes death of the embryo is sometimes present on the Z chromosome in pigeons. What will be the sex ratio in the offspring of a cross between a male that is heterozygous for the lethal allele and a normal female?

Q2. A mammal uses only one to two percent of its energy in ventilation as a fish must spend about 15 percent of its energy to move water over its gills. Explain this huge difference in their efforts to collect oxygen.

Reference no: EM13352972

Questions Cloud

Quse the following graph for yolandas frozen yogurt stand : q.use the following graph for yolandas frozen yogurt stand to answer the questions that follows.a. to compute the price

Q an organism is discovered that consumes a considerable : q. an organism is discovered that consumes a considerable amount of sugar yet does not gain much weight when denied

1 explain why work done at home is not incorporated however : 1. explain why work done at home is not incorporated however housing services that are also done at home are

Q1 bon temps has an issue of preferred stock outstanding : q1. bon temps has an issue of preferred stock outstanding that pays stock holders a dividend equal to 10 each year. if

Q1 in birds sex is determined by the zw chromosome scheme : q1. in birds sex is determined by the zw chromosome scheme. males are zz and females are zw. a recessive lethal allele

Q1 in guinea pigs black b is dominant to brown b and dolid : q1. in guinea pigs black b is dominant to brown b and dolid colour s is dominant to spotted s. a heterozygous black

Q1 propose a female fly with brown eye colour keep all : q1. propose a female fly with brown eye colour keep all other traits as wild type and design a male fly with ebony body

Q1 : q1. atpnbspandnbspgtpnbsparenbspprimarynbspsourcesnbspofnbspenergynbspfornbspbiochemicalreactions.a.

Q1 using the knowledge of dna replication describe the : q1. using the knowledge of dna replication describe the mechanisms in place for preventing mistakes during the process.

User Account

All Pages